Ellen Valentino joined Cornerstone's Maryland team in December 2019. She brings to Cornerstone more than 30 years of lobbying expertise in Maryland, Delaware and the District of Columbia. Ellen represents diverse business interests from small businesses to the energy sector to beverage companies. She focuses her work on protecting client interests through practical policy change, coalition-building, issue positioning and political strategy.

Prior to joining Cornerstone, Ellen founded and operated her own legislative and association management consulting firm, Valentino-Benitez & Associates (VBA, Inc.), for more than 28 years. As president of the firm, Ellen advocated for clients and built trusted relationships and coalitions to represent their interests in matters before the District of Columbia City Council, the Maryland and Delaware legislatures, and local governments.

In addition to representing various clients, Ellen currently serves as the executive vice president for the Maryland-Delaware-District of Columbia Beverage Association and the Mid-Atlantic Petroleum Distributors Association.

Ellen began her professional career as an executive in grassroots lobbying management with the Greater Washington/Maryland Service Station and the Automotive Repair Association. In 1991, she established her own legislative and association management consulting firm.

A life-long Maryland resident, Ellen is a graduate of Catholic University. She is married to Robert Benitez and they have two daughters.

15-20 years

Our firm has deep relationships with all decision makers in the State, especially with leadership in both chambers.

Drawing on more than 20 years of experience with Louisiana state government, Christopher "Chris"?Coulon advises national and regional clients who operate in a wide range of industries on matters at the state and local level.

Chris lobbies for bills that enhance his clients' businesses and against those that place burdens upon them, knowing that it takes a lot more effort to get legislation enacted than it does to kill a bill. Like many states, Louisiana has out-dated laws and regulations on the books, and Chris works with policymakers to modernize the statutory and regulatory frameworks "" understanding, for example, that they want government to adopt policies that keep pace with technological advancements in their industries while also protecting privacy in our data-driven global economy.

Chris earned his bachelor's degree in Public Administration from Louisiana State University. While pursuing his degree, he worked in many capacities in the State Legislature including a page, a Sergeant at Arms and finally as executive assistant to Speaker of the House John Alario. Prior to joining Pivotal, Chris worked in government relations with a New Orleans based law firm and with CLECO Electric Company.

Lauren Vella joined Cornerstone in January of 2025, launching the firm's Delaware office and expanding our Mid-Atlantic reach and capabilities.

Prior to Cornerstone, Lauren served as Chief of Staff to the University President at the University of Delaware (UD).

Lauren also served as Chief of Staff to the Speaker of the House in the Delaware House of Representatives, where she managed the staff of the Majority Caucus and was the chief advisor to House Majority Caucus Leadership to shape and achieve their policy and political goals. Lauren served Attorney General Kathy Jennings as Policy & Legislative Director for the Delaware Department of Justice during Jennings' first term where she managed the significant legislative agenda for the department.

Lauren holds a Master of Public Administration from the University of Pennsylvania and an Honors Bachelor of Arts in Political Science from the University of Delaware.

20+ years

20+ years

In 2020, named by the Hartford Business Journal as one of the top 50 most influential people in Hartford.

In 2017 she was honored as "Practitioner of the Year" by the Greater CT Chapter of the Public Relations Society of America (PRSA).

In 2005, recognized by the Hartford Business Journal as one of eight top woman business owners.

Developed and implemented several Connecticut market entry initiatives for a global banking interest, outpatient medical and behavior health facilities and a renewable energy company.

Led several multi-organizational coalitions to pass landmark legislation on scholarship funding, tort reform, energy deregulation, managed care regulation and tax initiative opposition.

Drives business strategy and best practices for two separate and widely respected companies.

Appointed by the Mayor of Hartford to Chair the Hartford Parking Authority.

Prior to starting Sullivan & LeShane, Inc. (S&L) in 1983 and Sullivan & LeShane Public Relations in 1988, served as Director of External and Public Affairs for a highly respected statewide medical and vocational rehabilitation organization.

Member and Secretary of the University of Saint Joseph Board of Trustees and chairs the Academic Women's Leadership. Vice Chair of the Washington-based Public Affairs Council, a professional association of corporate/national organizations.

Holds a Master's Degree in Healthcare Finance from the Rensselaer Lally School of Business and a Bachelor's of Science Degree in Leadership and Community Development from Springfield College. Participated in select executive level programs at Stanford University and McGill University. In addition, participated in the Yale School of Management leadership program.

15-20 years

Alisha M. Duhon has spent the last twenty-five years gaining experience in local and state government, association management, and private firms in the oil and gas, engineering, legal, and tourism industries. Ethics compliance and reporting is another area where Alisha has provided many services to clients and companies in Louisiana.

Growing up in the 'most Cajun place on Earth' (Vermilion Parish) taught Alisha that hospitality to all and hard work will always be the best route. Politics and service was a frequent family topic at Alisha's childhood dinner tables which inspired her interests which led her to government relations consulting. Through service, hard work, hospitality and our love of culture and politics; Alisha aims for clients to feel that inclusive sense to be part of our Pivotal family.

Bernie Marczyk joined Cornerstone's Annapolis office in December 2018. Most recently, Bernie served as the director of government affairs for Anne Arundel County Executive Steve Schuh. In this role, he worked closely with the County Council and Maryland General Assembly to advance legislative initiatives and implement public policies for the County.

Prior to working for the County Executive, Bernie worked for Ducks Unlimited for seven years as a federal and state lobbyist and thenin managing the organization's conservation delivery in the Atlantic Region (Maryland to Maine). In this role he was responsible partnering with federal, state, and non-profit organizations on land acquisition and wetland restoration projects on private lands or public lands such as Blackwater National Wildlife Refuge.

Bernie began his professional career working for then-Congressman Bob Ehrlich first as a legislative assistant on Capitol Hill and then as a policy advisor for Governor Ehrlich in Annapolis where he oversaw the legislative and policy efforts of the Departments of Agriculture, Environment, Natural Resources, Planning, and Transportation. Bernie also worked on multiple statewide and local elections in Maryland.

A graduate of Princeton University, Bernie and his wife Keely live on Maryland's Eastern Shore with their nine-year-old daughter Leah, seven-year-old twins Claire and Tommy, and three-year-old daughter Stella. Bernie is an active volunteer at St. Christopher's Catholic Church and as a basketball, soccer, and softball coach.

Mr. Tsujimura is a member of the American and Hawaii State Bar Associations. He is the former chair of the Zoning Board of Appeals of the City and County of Honolulu, and the former vice-chair of the Hawaii Community Development Authority. Mr. Tsujimura is also the former president and board member of the Land Use Research Foundation.

20+ years

Dennis combines his corporate and public service experience to serve clients across a broad range of industries.Dennis has previously held the position of senate sergeant-at-arms for the Mississippi State Senate and served as a staff attorney in the Senate Legislative Services office. He has also served as senior attorney for the Mississippi Public Service Commission and as a regional public affairs manager for International Paper. Additionally, he is the author of the Mississippi Chapter, Lobbying, PACs and Campaign Finance: 50 State Handbook.In addition to holding memberships and leadership positions in a number of professional organizations, Dennis is an adjunct professor of law at Mississippi College School of Law teaching the course, "Legislation."

JOHN Y. BROWN III was elected as Kentucky's Secretary of State at the age of 32, the second youngest in the nation, and re-elected without opposition, serving from 1996-2004. His accomplishments as secretary of state include becoming a national voice for election reform, creating nationally recognized e-government services as well as programs to promote entrepreneurism and small business development, all while saving Kentucky taxpayers nearly a million dollars through efficient management measures. Before entering politics, John headed up franchising for Roaster's Inc., developing fast food venues in 37 states and several foreign countries. John served as vice-president of ResCare, working in government relations and public affairs for the Louisville based human services company with over 40,000 employees in over 40 states and several foreign countries. He served several years as an adjunct professor of business law at Bellarmine University. In 2007, John ran unsuccessfully as the lieutenant governor running mate on a ticket with gubernatorial candidate Jody Richards (Kentucky's Speaker of the House) in a seven slate Democratic primary. John graduated magna cum laude from Bellarmine University, earned a law degree (with distinction) from University of Kentucky, and then went back to Bellarmine University for his M.B.A.

20+ years

In 2020, recognized by the Hartford Business Journal as one of the top 50 most influential people in Hartford.

Secured the initial state funding needed for UConn to build Gampel Pavilion.

Led the government relations team for several industry mergers requiring approvals from the Office of the Attorney General, State Legislature and other regulatory bodies.

Point person working with the City of Stamford, resulting in $240 million in infrastructure funds.

Sought after political strategist with close ties to every major statewide and local political leader in the state.

Drives business strategy and best practices for two separate and widely respected companies.

A veteran political strategist, played key roles in the presidential campaigns of Gerald Ford, Ronald Reagan and former Senator Robert Dole, as well the campaigns of former Congresswoman Nancy Johnson, Senator Joseph Lieberman and several Connecticut governors. Most recently served as a senior adviser for two U.S. Senate campaigns and trusted thought leader for two Connecticut Governors.

Graduate of Fairfield University with a BS in Sociology.

Began lobbying career with the Hartford Chamber of Commerce, and then with Connecticut's largest beverage trade association. In 1983, joined his partner Paddi LeShane in founding S&L and, five years later, they founded Sullivan & LeShane Public Relations, Inc. (SLPR)

20+ years

Led the passage of legislation to provide for Ready to Go Drinks in grocery stores, convenience stores and restaurant licensees.

Secured funding for the 15 Community Colleges including passage of the State Board of Higher Education.

Led the passage of legislation to provide for the addition of the federal judiciary in the Pennsylvania Protective Class Law.

Worked to advance client's legislative goals in the reauthorization of the Commonwealth's One Call System.

C&G Strategies has focused its practice on working both sides of the aisle. We have relationships in all four Caucus Leadership Teams

Co-Founder/General Counsel

Tony has dedicated his entire career to government relations, representing a variety of corporations and non-profit organizations from across the Commonwealth. An effective advocate, his experience and reputation helps make connections between his clients and policy makers. Tony is an active and well-respected participant in the legislative process in Harrisburg. Tony is known for his tireless work ethic and his ability to bring together stakeholders on any issue to find commonalities and work together. His expertise lies in government relations, legislative strategy, political action committee (PAC) regulation, and lobbying regulation. Tony is also a frequent continuing legal education (CLE) presenter.

MIKE TOMAN is responsible for the firm's day-to-day business operations. He is known for keen attention to detail and a grasp of such varied fields as health care, organizational budgeting, and procurement processes. Mike has been with The Success Group since 2000. Prior to joining The Success Group, he spent five years lobbying as a senior policy analyst with the County Commissioners Association of Ohio, worked for the Ohio Legislative Budget Office, and worked for the Ohio Supreme Court. Mike served as President of the Ohio Lobbying Association (OLA) and was a member of the OLA Board of Trustees for seven years. Currently, Mike serves on the Board of Trustees for The Advocacy Group (TAG) and on The Ohio State University's President's Advisory Board. Mike sits on select alumni committees at the John Glenn College of Public Affairs' Alumni Advisory Committee. He earned his Bachelor of Science in Psychology and Criminal Justice at Eastern Michigan University and a Master of Public Administration at The Ohio State's John Glenn College.

Prior to joining JohnsonPossKirby in 2017, Luke served Capitol Hill in the Tennessee General Assembly, the Department of Finance and Administration, and the Office of Governor Bill Haslam.

Luke began working in politics in 2009 for Representative Pat Marsh and then joined Governor Haslam's office in February of 2011. During his tenure there, Luke helped shepherd the Governor's signature legislation through the legislative process. These initiatives include teacher tenure reform, tort reform, the TEAM Act, the Prescription Safety Act, and TN Promise to name a few. In 2015, Luke left the Governor's office to join Commissioner Larry Martin and the Department of Finance and Administration.In his role as Legislative Liaison, Luke was responsible for communicating with the legislature on behalf of Commissioner Martin and the divisions within the department. Luke worked with the Commissioner, Strategy Technology Solutions (STS), Benefits Administration, and the Division of Budget to achieve the department's goals and facilitate a strong working relationship between the department and General Assembly.

In addition to his work with the F&A divisions, Luke played a role in preparing the Governor's Budget and advocating for its approval in the General Assembly. These budgets included the largest tax cut in state history, two debt free budgets, and significant investments in recruiting jobs.Luke and his wife, Katie, live in Franklin with their two daughters, Ryall and Mackie.

CALI award for best Oral Argument in Legal Practice II

Prior to joining the firm, Matt served as a budget analyst in the Hawaii State Legislature for the House Finance Committee from 2011-2015.

Matt graduated cum laude from the William S. Richardson School of Law in 2016 where he served as Student Bar Association President, Law School Visit Coordinator, and Legal Writing Teaching Assistant.

During law school he served as a research assistant to Professor Ronald Brown at the William Richardson School of Law. He also served as the law school's representative to the Young Lawyers Division of the Hawaii State Bar Association from 2015-16. In addition, Matt also served as a student member on the Access to Justice Task Force tasked with developing the feasibility of a Loan Repayment Assistance Program. Matt also served as the head coach of the Ete football team in 2014.

Prior to attending law school, Matt graduated with honors from Punahou School, and attended Occidental College where he graduated cum laude with a Bachelor of Arts Degree in Asian Studies with an emphasis in Japanese History in 2011. During college, Matt participated in track and field, and served as the team captain in 2011. During this time Matt spent his summers as a teaching assistant mentoring elementary, middle and high school students.

20+ years

Led the passage of legislation to provide for Ready to Go Drinks in grocery stores, convenience stores and restaurant licensees.

Secured funding for the 15 Community Colleges including passage of the State Board of Higher Education.

Led the passage of legislation to provide for the addition of the federal judiciary in the Pennsylvania Protective Class Law.

Worked to advance client's legislative goals in the reauthorization of the Commonwealth's One Call System.

C&G Strategies has focused its practice on working both sides of the aisle. We have relationships in all four Caucus Leadership Teams

Co-Founder/Chief Financial Officer

With over two decades of executive experience, Rob's career has placed him at the highest level of local and state government. As a public affairs professional, he has shaped public policy and legislation for clients in non-profit organizations, for-profit companies, trade associations, unions, and more. Rob provides individualized services that support clients' specific needs and has successfully represented clients in a variety of sectors. Whether navigating state or local government, facilitating introductions with decision makers, working with stakeholders, or developing and executing strategies, he is focused on allowing each individual client to meet their goals.

11-15 years

Past president of Association of Connecticut Lobbyists

Featured presenter at the CT Lobbying Conference on "Lobbying the Executive Branch" the past four years.

2019 Hartford Business Journal Forty Under 40

Over ten years of municipal land use experience on Planning and Zoning/Zoning Board of Appeals

Served as point person for the CT Conference of Municipalities on Energy, Labor and Zoning topics.

13 years of experience in contract lobbying; three years of experience in state and municipal government.

Nathan Poss has over 20 years of experience in both the public and private sector. His focus is to provide clients with a comprehensive range of services, including: legislative drafting and tracking, policy development, governmental lobbying (at all levels), strategy development, and business procurement.



Prior to forming JohnsonPossKirby Government Relations in 2007, Nathan served as a principal at Smith Johnson & Carr, focusing on lobbying efforts for the firm's business clients and taking the lead on procurement strategies.



Before entering into the lobbying world, Nathan served seven years on Capitol Hill as a legislative assistant to then Speaker Pro Tempore of the Senate, State Senator Bob Rochelle. During his tenure with the state, he played an important part in writing and developing legislation, organizing political strategies, building coalitions, and monitoring legislation for committees. Poss has also been actively involved in numerous successful political campaigns.



Poss has built a reputation of hard work and respect among those on Capitol Hill. Working with major players in the state's business community, he has served as a key strategist on major environmental and tax issues. Nathan has garnered a reputation for producing tangible results through well-executed and intricate lobbying efforts designed to achieve long lasting success for his clients.

In addition to his lobbying successes, Nathan has extensive experience with the procurement process in Tennessee. Recently recognized by the TN Report for being known as an "expert in the state's purchasing practices," Nathan has cultivated the necessary connections with top-level decision makers throughout all areas of state government. Throughout his practice he has developed a strong grasp of the state's purchasing processes, and has successfully secured multi-million dollar purchases for numerous clients.

Nathan is a graduate of Cumberland University with a B.A. in Social Science. A native Tennessean, Nathan grew up in Lebanon and currently lives in Green Hills with his wife Molly.

ROBERT CULLEY has had extensive experience in the legislative process for over 35 years before the Texas Legislature and various state agencies of government. He was Chief of Staff for a State Representative who was later elected State Senator. His service at the Capitol has left him with strong relationships among both members and staff. During his time working for the legislature, Robert oversaw the House Public Education Committee and the Senate Administrative Committee. Then, he became the Director of Governmental Affairs for the Texas Motor Transportation Association where he managed public relations, grassroots and lobbying efforts for the association's 1200 members.

In 1993, Robert joined Polan Culley Inc. (then Polan Ingram Advocacy Group), bringing his extensive Capitol and trade association experience to the firm. He brings his clients a wealth of knowledge in strategy and project management, and is well-respected for his aggressive pursuit of the client's interest in long term goals.

DOUGLAS STRUYK joined Carney Appleby P.L.C. as an associate in 2013. Doug is a native of Council Bluffs, Iowa, graduating from Saint Albert High School in 1988. He received his Bachelor of Science degree in Horticulture from Iowa State University in 1992. Doug received his Juris Doctorate from Creighton University School of Law in 1996 with Cum Laude honors and was admitted to the Iowa Bar in June of 1996. He is also a past president of the National Association of Bar Executives' Government Relations Section.

After graduating from law school, Doug was Chief of the Iowa Department of Agriculture and Land Stewardship's Agricultural Diversification Bureau. After working at the Department of Agriculture, Doug returned home to manage his family's business, Struyk Turf, Ltd. In 2002, Doug was elected to the Iowa House representing Council Bluffs. During his time in the Iowa House, he was elected Assistant Minority Leader and was the Ranking Member of the House State Government Committee. He also served on the Judiciary, Economic Development, Commerce, and Agriculture Committees. Doug retired from the House 2010. In November of 2010, Doug was named Chief Legal Counsel to the Iowa Secretary of State's office. Doug also served as the office's senior legislative liaison. In May of 2012, he was selected by the Speaker of the House to serve as his Executive Officer, a position Doug held until joining Carney Appleby Law.

Doug has nearly two decades of government relations experience including time as a lawyer, lobbyist, and legislator. He has worked at the highest levels of both the executive and legislative branches of Iowa's government. Doug is well known at the Iowa Capitol as a skilled problem solver with a proven record of working with both parties to resolve controversial issues. He was a respected leader in the Iowa legislative process with a well-developed network and skill set.