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.

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.

Camila Knowles joined Cornerstone's Atlanta office in October 2017 and now serves as principal and director. She comes to the firm after serving in Governor Nathan Deal's cabinet as Commissioner of the Georgia Department of Community Affairs (DCA) since January 2015. At DCA, she led a staff of over 400 and allocated over $1 billion annually in state and federal dollars as she and her team fulfilled DCA's mission of encouraging community development, providing local government assistance, financing Georgia's economic development, and providing affordable housing.

Prior to her service in the Deal Administration, she was chief of staff to U.S. Senator Saxby Chambliss. She began her career with Senator Chambliss in 2003 as one of the Senator's designees on the Senate Judiciary Committee focusing on immigration law and policy. After serving as a legislative assistant and chief counsel for the Senator in Washington, D.C., she moved to Atlanta in 2009 as state director, and was named chief of staff in 2013.

While on Senator Chambliss' staff, Camila worked on a host of legislative issues, including energy policy, comprehensive immigration reform, judicial nominations, Georgia's tri-state water wars, and the deepening of the Savannah Harbor. She also worked on appropriations bills providing critical federal funding to numerous Georgia projects.

Camila began her career in Washington as a legislative aide to U.S. Senator Kay Bailey Hutchison of Texas. She holds an A.B. in History from Harvard, from which she graduated with cum laude distinction, and a law degree from Georgetown University. She is a member of the State Bar of North Carolina.

Camila is a current trustee for Leadership Georgia and serves on the boards of directors for the Georgia Public Telecommunications Commission, Camp Sunshine, the Georgia 4-H Foundation, Georgia Cities Solutions, and the Chambliss Leadership Forum. She is an alumni interviewer for Harvard and for the Chambliss Fellows program, which sends University of Georgia students to Washington, DC for a semester. She resides in Atlanta with her husband Sean and their four children. Camila is an active member of Peachtree Road United Methodist Church, where she serves on the church's Staff-Parish Relations Committee and teaches kindergarten Sunday School with her husband.

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.

Rachel Cone joins Southern Strategy Group after more than a decade of service in the highest levels of local and state governments. Rachel served as the Interim Secretary for the Florida Department of Transportation (FDOT), where she successfully shepherded the department's policy agenda and $11 billion budget across the finish line of the 2017 legislative session.

During her time at FDOT she also served as the Assistant Secretary for Finance and Administration, overseeing the offices of work program and budget, finance, procurement, technology, human resources, performance management and other administrative functions. She managed three of the largest transportation work programs in state history and represented the department in front of the U.S. Department of Transportation, the U.S. Treasury, Fitch and Moody's rating agencies.

Rachel also directed changes to how the department finances the work program, and successfully advocated for statutory changes that resulted in a new financing vehicle for the department. This allows the department to fund additional, major transportation projects at a lower cost. She also oversaw the reorganization of the department's technology offices, which resulted in a culture shift for the department in how it prioritizes, spends and manages transportation-specific and traditional technologies.

In 2012, Governor Rick Scott appointed Rachel to serve as his Deputy Chief of Staff, where she was responsible for advising him on statewide issues, appointments to boards and commissions and providing guidance and direction to 14 state and quasi-governmental agencies on operational and management issues, including policy, budget, communication, legislative strategy and agency priorities. Those agencies were the Departments of Business and Professional Regulation, Citrus, Emergency Management, Economic Opportunity, Environmental Protection (and Water Management Districts) and Transportation. Also included under her purview were Florida Wildlife Commission, Space Florida, Visit Florida, Volunteer Florida and CareerSource Florida.

Rachel previously served as the External Affairs Director for the Florida Department of Environmental Protection where she directed planning and statewide communications strategies for the department, and coordinated communications efforts with Florida's five water management districts. This included topics such as renewed water management district oversight, various departmental restructuring, the health of Florida's springs, Governor Scott's Everglades Restoration Strategies plan and Florida's ongoing recovery after the 2010 Deepwater Horizon oil spill.

Prior to her family's move to Tallahassee, Rachel served on the executive leadership team in the Mayor John Peyton administration in Jacksonville. Rachel began her career as a military reporter at the Florida Times-Union.

Rachel is a proud graduate of Auburn University. She and her family are active members of Trinity United Methodist Church, and Rachel serves as a member of the Board of Trustees at Holy Comforter Episcopal School in Tallahassee.

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.