Tony Essalih joined Cornerstone in 2011 as a co-lead of the firm's flagship Texas office in Houston. He spent 12 years on Capitol Hill and came to Cornerstone from the office of Congressman John Culberson (R-Houston). Tony worked for Congressman Culberson for 10 years, the last five as his chief of staff. Prior to becoming chief of staff, Tony served in a variety of capacities including legislative assistant, legislative director, communications director, and deputy chief of staff. He spent eight years in Washington, D.C. before relocating to Houston in 2007.

As chief of staff, Tony was responsible for guiding the day-to-day operations of the Congressman's Washington and Houston offices, and oversaw a 15-member staff under a fixed budget. Outside of the office, he served as the principal liaison to the Congressman's campaign committee and provided strategic counsel and advice related to his re-election efforts. Tony's areas of policy expertise include transportation, energy, budget and appropriations. Tony also led outreach efforts and served as an emissary on behalf of the Congressman with state lawmakers in Austin and local elected officials in Houston.

Prior to Culberson's election in 2001, Tony worked as a legislative assistant for Congressman Culberson's predecessor, former House Ways and Means Committee Chairman Bill Archer. Tony's began his tenure on Capitol Hill with former House Natural Resources Committee Chairman Doc Hastings.

Tony has advised and assisted numerous local, state, and federal campaigns. He serves on the board of the National InterFaith Foundation, the Advisory Board for the Houston Technology Center, spent two years on the Board of the Spring Branch Medical Center and was a member of Houston Mayor Annise Parker's transition team in 2010.

Tony was born and raised in Fredericksburg, VA and received his B.A. in Political Science from Mary Washington College. He was a member of Mary Washington's NCAA semifinalist men's soccer team. He lives in Houston and has two angelic daughters, Grace and Libby.

Tim Schauer joined Cornerstone in 2011 as a co-lead of the firm's flagship Texas office in Houston. Tim has more than 25 years of government relations experience working in Houston, Austin and Washington, DC. Tim has advocated for a broad range of policy issues including health care, health insurance, public health, tort reform, education, water financing, pensions, economic development and craft beer. In addition to his direct advocacy efforts, Tim specializes in public policy development with community organizations, as exemplified by his ongoing work with Healthy Living Matters - a Houston collaborative focused on solving childhood obesity since 2012. Tim is a recognized expert on the uninsured, Medicaid/CHIP funding and policy, he has delivered numerous presentations to health organizations and businesses alike.

In the 1990's, Tim built extensive bipartisan experience as a Texas Senate staffer to former Lt. Governor Bob Bullock, Senators Judith Zaffirini, Bill Sims, and Chris Harris. He left the Texas Senate in 1998 to work on a special project for the Texas Hospital Association as the chief operating officer for the Texas Health Care Council, a statewide advocacy group dedicated to focusing public attention on the uninsured and the safety net health care delivery system.

In 2000, Tim moved his family to Houston to lead the advocacy efforts of the Memorial Hermann Healthcare System, one of the largest non-profit health care systems in the country. In this capacity, Tim developed and managed the public policy agenda as well as guided the government relations efforts on local, state and national issues. Tim's collaborative style and upbeat leadership skills were recognized when he chaired the Greater Houston Partnership's Federal Relations Committee for three consecutive years in the mid-2000s.

While working at Memorial Hermann, Tim continued his education at the University of Houston at Victoria. In 2008, he moved from his advocacy role to a business development position, which afforded him the experiences of managing on the frontlines of the health care industry. While serving on the Memorial Hermann leadership team, he gained first-hand experience in disaster recovery after rebuilding from the damages from Tropical Storm Allison in 2001 and Hurricane Ike in 2008.

As Tim transitioned from Memorial Hermann in 2010, he worked as a national health care consultant with the Ashcroft Group Consulting Services team based in Houston, focusing primarily on compliance activities in Fortune 200 medical device manufacturers.

Tim grew up in Littleton, CO, was an exchange student and soccer player in Hannover, Germany, and attended the University of Colorado in Boulder where he received a B.A. in Biology. He earned his Masters of Science in Economic Development and Entrepreneurship from the University of Houston at Victoria School of Business. He is married, has two children in college, and enjoys playing hockey in the senior leagues in Sugar Land, TX.

Martin Hubert brings a wealth of state government experience to the clients of Cornerstone Government Affairs. From his early career as chief counsel to the Senate Natural Resources Committee to his gubernatorial appointment as a commissioner of the Texas Commission on Environmental Quality to his eight years as the deputy comptroller of Texas, Hubert has managed thousands of employees and millions of taxpayer dollars under both Democrat and Republican administrations.

Martin was the 2008 recipient of TSABAA's Administrator of the Year Award. Presented annually, this prestigious award was established to formally recognize state employees who have demonstrated outstanding leadership skills and who have made significant contributions to state agency business administration.

As the final general counsel to legendary Lt. Governor Bob Bullock, Martin learned the mastery of government relations from some of the most influential leaders in Texas history. His knowledge of agriculture stems from generations of the Hubert family's cow/calf and farming operations in South Texas and serving as the Texas Deputy Commissioner of Agriculture for eight years. Martin offers a unique combination of legal, natural resources, tax policy and state government procedural expertise.

Hubert is a graduate of the Georgetown University Law Center and St. Mary's School of Law. He was Brigade Executive Officer in the Corps of Cadets at Texas A&M University, where he was a member of the Ross Volunteers Honor Guard and the Singing Cadets. He successfully completed Army Ranger School and served in the U.S. Army Reserves. He is a marathon runner and coaches his son's little league teams.

Hubert is a second tenor and helps raise money for Legal Aid through the Travis County Bar Association's "Bar and Grill" fundraisers. He and his wife Celeste live in a historic home in Austin, where they are involved with the Austin Symphony, St. Theresa's Catholic Church and School, and the happily busy lives of their children Belle and Patrick.

Anne Mazuca brings over a decade of legislative experience working at the Texas Capitol, most recently serving six years as Chief of Staff to State Representative R.D. ‘Bobby' Guerra.

During her time working in the Texas legislature, she has worked for Members from Dallas, Galveston and South Texas, allowing her the opportunity to build relationships with local elected officials, community leaders and stakeholders from across the state while working on a wide range of policy areas. Prior to being named chief of staff, she served as a legislative director and legislative aide where she was the primary staff lead for the House Appropriations Committee Article II and Article III focusing on healthcare and education funding, the Public Health Committee, Energy Resources, Business & Industry, Ways & Means and Insurance committees.

In her capacity as chief of staff, Anne was responsible for guiding the day-to-day operations of the Capitol and McAllen offices. Outside of the office, she provided support for her Member's re-election campaign where she provided feedback on messaging, managed all Texas Ethics Commission and campaign finance filings and offered general advice and assistance related to his campaign.

An Austin native, Anne has close ties to the city in which she still resides.

Craig Holzheauser brings to Cornerstone years of involvement in Texas state and local politics. The son of a state representative, Craig went to work in the private sector after college before beginning a political career at the state capitol in 2012.

Working as a legislative consultant, managing the campaigns of House and Senate members, and serving as legislative director and then committee director of the House Committee on Public Health in his first year of employment, Craig is goal oriented and proven himself to be a quick study. Craig has a keen political intuition and a knack for developing the type of relationships that matter in campaigns, service of an elected official, or success for his clients.

A native of Victoria, Texas, Craig holds a Bachelor of Science in Construction Science from Texas A&M University.