Mr. Valentine represents a wide variety of clients in a broad range of legislative, regulatory, administrative, litigation and government enforcement matters before the federal government. His clients include major corporations, trade associations and business coalitions. He has also represented a number of prominent individuals, including a federal judge in her personal capacity and the prime minister of a foreign government.

15-20 years

National Children's Alliance, Bud Cramer Award
Florida Bar, Family Law Section, Legislative Achievement
Kristi House Service, Former President Service Award

SSG has won numerous fundraising awards and recognitions
Managing Partner, Miami office, The Southern Group
Chairman, Republican Party of Miami-Dade County
Executive Board, Republican Party of Florida

Nelson D. Diaz concentrates his practice on government and community relations. Nelson has successfully represented local governments, businesses, trade associations and other corporate clients before the Florida legislative and executive branches of government. Nelson has become one of Florida's young rising stars since serving as Chief Legislative Aide to the Former Speaker of the Florida House of Representatives, and now United States Senator, Marco Rubio.

In addition, Nelson has successfully represented corporate entities before the Miami-Dade County Board of County Commissioners, numerous Miami-Dade County agencies and departments, the City of Miami, the City of Hialeah, and several other municipal governments and authorities in Miami-Dade County. In addition to government relations, Nelson has successfully guided many corporate clients entering the South Florida market, providing community relations services. By advising new entrants to the market on who the key players are, which organizations to join, and how to navigate the local political waters, Nelson has assisted many clients successfully enter the South Florida and Miami markets.

Nelson began his political career as a volunteer in the 1996 Presidential campaign in Florida where he and many other young leaders, including now U.S. Senator Marco Rubio, State Senator Anitere Flores, Lt. Governor Carlos Lopez-Cantera, and many other now-elected officials, worked hard to build a strong Republican Party base in South Florida. Since then, Nelson has worked on countless political campaigns in Florida from federal races for Presidential and U.S. Senate, to state races for Governor, Cabinet offices, Florida House of Representatives, and Florida Senate, as well as many local government campaigns for county commission, city councils, and mayor's races. Nelson has also been active in various business and civic organizations locally, and counts many legislators, party officials, and legislative leaders among his personal friends. As a result of Nelson's service with U.S. Senator Rubio and his involvement in many campaigns, Nelson has established an extensive network of key contacts in Miami-Dade County and within the Florida Legislature. In fact, Nelson currently serves as the Chairman of the Republican Party of Miami-Dade County and serves on the executive board of the Republican Party of Florida.

Active in the local community, Nelson served on the City of Miami's Historical and Environmental Preservation Board, protecting the city's historical and environmental treasures, as well as the Miami-Dade County Community Council of West Kendall, a local land use and zoning board. Additionally, Nelson serves as the Immediate Past President of the Board of Directors for Kristi House, Miami-Dade County's child advocacy center for child victims of sexual abuse and human trafficking as well as the Board of Directors of the Good Government Initiative, a bi-partisan organization dedicated to cultivating leaders of excellence in South Florida. Recently, Florida Governor Rick Scott appointed Nelson to the statewide Children and Youth Cabinet for his service and advocacy on behalf of Florida's children.

Nelson attended Florida International University, where he earned his Bachelor's degree in International Relations, with a Certificate in Latin American and Caribbean Studies, as well as minors in Political Science and Geography. Nelson graduated from the University of Florida, College of Law, cum laude, and was admitted to the Florida Bar in 2004.

A native of Louisiana, Brad Mittendorf is also a founding member of Southern Strategy Group (Louisiana). Leveraging expertise in energy and telecommunications policy, Brad represents clients before the Louisiana Public Service Commission (LPSC). In addition, he coordinates issues management and media relations services for SSG clients.

The former campaign manager of Republican Jimmy Field's successful bid for public service commissioner, Brad also served as Commissioner Field's executive assistant. During his 7-year tenure with the LPSC, Brad advised on energy, telecommunications and transportation policies. In addition to serving as the commissioner's representative at regulatory hearings and workshops, Brad was also principal liaison to other elected officials and agencies.

In addition to his work in the political and regulatory arenas, Brad founded In Focus, LL -- a private research company. As president, Brad directed focus group research to test issues for a variety of political candidates and organizations and for law firms seeking to evaluate trial and mediation strategies.

Brad is a Phi Beta Kappa and summa cum laude graduate of Louisiana State University and served as co-editor of the Oxford Book of the American South (1997).

A founding member of Southern Strategy Group (Louisiana), Liz Mangham serves as its managing partner. She primarily represents clients before the legislative and executive branches of state government, focusing on issues related to commerce and industry, civil law, criminal justice, education, health care and transportation.

With keen political skills acquired from managing numerous elections, Liz applies winning campaign strategies to complex lobbying battles. She combines essential grassroots and coalition- based support with the media to deliver comprehensive, effective strategies.

A graduate of Brenau Women's College, Liz has been recognized as one of the top 100 "Louisiana Influencers" and a "National Rising Star" by Campaigns & Elections' Politics magazine and an "Up and Comer in Louisiana Politics" by the Times of Acadiana. Her consulting work has earned award-winning recognition for various political and public policy firms.

Colonel Steve McCain retired from the Department of Defense (DOD) after twenty-six years of service and now provides national security policy and appropriations counsel to defense, energy, aerospace, and homeland security industries, academia, and other nonprofit organizations regarding federal business development, budget and acquisition, as well as congressional actions.

Prior to joining the firm, Colonel McCain was the director of legislative affairs, U.S. Pacific Command, and principal advisor to the combatant commander for all congressional liaison. He advocated directly with Congress and professional committee staff for programs, budgets, and policies, and executed legislative strategy which improved global defense force capability. Colonel McCain provided critical support for senior military leadership testimony before Congress regarding the Asia-Pacific region.

In the early stages of Operation Enduring Freedom, he served as commander of an Air Expeditionary Wing where he led support and combat operations of Air Force, Army, Navy, Marine Corps and coalition forces in Afghanistan. He also commanded a combat search and rescue operations group, where he was responsible for flying, training, maintenance, and deployment of personnel and aircraft to combat operations worldwide.

In his capacity as the principal deputy legislative assistant to the Chairman of the Joint Chiefs of Staff, he coordinated legislative efforts with senior military leaders which helped galvanize congressional support for billions of dollars in healthcare reform, operational readiness, and weapon modernization programs. Prior to his tour with the Joint Staff, he was the director of legislative affairs in the Washington, D.C., office of the U.S. Special Operations Command, where he built congressional advocacy for special operations missions and for significant funding increases in key classified programs.

His experience also includes service as a Branch Chief of Aircraft Systems at Warner Robins Air Logistics Center in Georgia, where he managed aircraft and helicopter modification programs. In this capacity, he resolved acquisition, contracting, and logistics challenges with the defense industry.

Colonel McCain has over 2500 hours in various aircraft as a navigator, including 150 in combat. His decorations include the Defense Superior Service Medal, Bronze Star, Legion of Merit, Defense Meritorious Service Medal, Meritorious Service Medal with two oak leaf clusters, Air Medal with one oak leaf cluster, and the Aerial Achievement Medal with four oak leaf clusters.

W. Dennis Stephens is a government affairs counselor at K&L Gates. He previously served as a senior staff member for several House Republican members, including former Majority Leader Dick Armey. Dennis has more than 37 years working in Republican campaigns, policy, and political matters including more than 21 years experience as a Republican lobbyist.

Dennis works on a wide range of public policy issues including tax, technology, foreign policy, and transportation on behalf of Fortune 500 companies, associations, and small businesses.

Dennis has worked closely with many Republicans in the House and Senate including members of the Republican Study Committee. He has especially close relationships with the House Republican leadership and senior staff as well as many of the incoming freshmen.

In addition, Dennis has worked closely for more than two decades with every leading conservative activist and grassroots organization including The Heritage Foundation, Americans for Tax Reform, FreedomWorks, Americans for Prosperity, and the Family Research Council.

Dennis is very active in the conservative movement and is a regular speaker for the Leadership Institute Capitol Hill Staff School. He is also consulted regularly by Republican elected officials to review both policy issues and electoral strategy and tactics.

Prior to working on Capitol Hill, Dennis spent three years in the second term of the Reagan Administration, including the Office of Presidential Personnel in the White House.

20+ years

Dominic has served in various capacities in the executive branch of NJ State government along with appointed positions to various Boards and Commissions. He left state service in 2012 after a career that spanned over 28 years across the Departments of Treasury, Corrections and Human Services. From 1998 to 2012 he was with the Department of Human Services serving as Special Assistant to the Commissioner. In 2002 he began work at the Department's Division of Medical Assistance & Health Services (Medicaid) where he managed Government Affairs, Medicaid recoveries, Public Records.

In January 2012 Dominic joined Xerox State Healthcare as Vice President for Government Healthcare Solutions (GHS) for NJ, PA, CT, DE and RI. He was responsible for the expansion of existing business and identifying new state government business opportunities; screening Requests for Proposals (RFP); leading bid proposal teams; identifying strategic partners; and winning new business. During his tenure at Xerox, Dominic closed deals totaling $134M including $30M in new business and grew the NJ GHS account from $32M to $49M.

In May 2015 Dominic joined Phoenix Ventures LLC as Director of Business Development where he was responsible for developing strategic business relationships for potential partnerships, navigating complex government sales cycles, identifying opportunities and driving growth for companies transitioning into or expanding in the public sector. His primary focus was on government healthcare including Medicaid & Medicare, healthcare analytics, and information technology.

Dominic was the longest serving Chairman of a NJ County Board of Elections, serving on the Mercer County Board from 1994 to 2012. He was appointed and re-appointed to the Board by six Governors of both parties. He also served as Chairman of the Mercer County Board of Social Services, President of the Trenton City Ward Commission and is active in various community organizations.

Sean is a government affairs coordinator who focuses on federal policy issues in the Washington, D.C. office of K&L Gates.

He concentrates on federal budget and appropriations issues pertaining to defense, bio-defense, homeland security, energy, nanotechnology, manufacturing, transportation, agriculture, telecommunications, foreign aid, education and health care. In this capacity, he has assisted and advised a variety of clients on the annual budget and appropriations process, as well as matters pertaining to federal stimulus and deficit reduction.

Sean worked for Senator Barbara A. Mikulski for two and a half years prior to joining the firm