Executive Team

Christopher Tyson


Christopher J. Tyson was recently a Newman Trowbridge Distinguished Professor of Law at the Paul M. Hebert Law Center at Louisiana State University. In December 2021 he completed a four-year term as the President and CEO of Build Baton Rouge, the city’s redevelopment authority and land bank. Under his leadership the city launched a $50 million Bus Rapid Transit project, won a $30 million HUD Choice Neighborhoods grant, was awarded the highly competitive $5 million JP Morgan Chase AdvancingCities grant, and established Baton Rouge’s first Community Land Trust. During that same period Build Baton Rouge acquired and prepared for development over 20 acres of vacant and blighted urban property and administered over $20 million in HUD Community Development grants on behalf of the city of Baton Rouge.

Chris received his Juris Doctor degree from the Georgetown University Law Center, his Master of Public Policy degree from the Harvard Kennedy School, and his Bachelor of Architecture degree, with honors, from Howard University.


Carlos Alcazar

Chief Operating Officer

Carlos joined NCST in 2010, and has more than 20-years of experience in mortgage banking with direct management in originations production, operations and community lending.

Prior to joining NCST, Carlos was Senior Vice President, Director of Special Programs at CitiMortgage where he led their Mortgage Revenue Bond programs origination through state and local housing finance agencies, along with specialized programs including the California Public Employees Retirement System (CalPERS) and the Texas Veterans Land Board (TVLB). During his tenure at CitiMortgage, the department finished ahead of plan and originated more than $2B in loans amid economic turmoil.

Carlos earned an MBA from Keller Graduate School of Management, and a BA in Political Science from Arizona State University.

Kristin Siglin

Vice President for Policy and Partnerships

Kristin Siglin serves as Vice President for Policy and Partnerships at NCST. In this role, she leads NCST’s policy advocacy to help communities address blight and high rates of vacant, abandoned and distressed properties and to foster sustainable homeownership to build assets for individuals and neighborhoods. She also helps build relationships between NCST and external stakeholders at the local and national level.

Before coming to NCST, Kristin led the policy efforts at Housing Partnership Network, presenting the experience of nonprofit affordable housing developers and lenders to policymakers.  She wrote several policy papers and has testified before Congress.  Prior to Housing Partnership Network, Kristin had a variety of roles at Enterprise Community Partners, including managing a special project that commissioned and disseminated original research on school-centered community revitalization. She previously served as the Policy Director of the Millennial Housing Commission, a 22-member bipartisan commission charged by Congress with examining the nation’s housing policy, and worked on Capitol Hill in various capacities, including the Senate Committee on Banking, Housing and Urban Affairs and the personal staffs of Senator Christopher S. Bond (R-MO) and Representative Jim Leach (R-IA.).

Kristin holds an AB in History from Brown University