PEOPLE

Benjamin Warnke, Principal

Benjamin founded Warnke Community Consulting, the community development firm that grew into Alembic Community Development, in 1998, after a career in nonprofit consulting and real estate finance. Previously, Benjamin was a Senior Director at the Corporation for Supportive Housing and at the Enterprise Foundation. He also established and directed the New York Office of the Low Income Investment Fund, a national community development nonprofit financial institution. Benjamin serves as Clerk of Penington Friends House and as a member of the finance committee of the Friends Council on National Legislation. He formerly served as Chair of the Board of Brooklyn Friends School. Benjamin received a Bachelor of Arts in English Literature from Yale University.

Devan Cronshaw, Senior Project Manager

Devan is a Senior Project Manager at Alembic Community Development, where he advances affordable and supportive housing projects from predevelopment through completion in partnership with nonprofit organizations and community stakeholders. He oversees site assessment, financing, and construction coordination to help deliver sustainable and community-driven development. An urban planner with over eight years of experience, Devan has led major capital and planning projects with South Bronx Unite, managed community facility development with Hester Street, and directed affordable housing initiatives in Canada with M’akola Development Services. He is a certified member of both the American and Canadian Institutes of Planners and serves on the board of the East Harlem El Barrio Community Land Trust. Devan holds a Master of Community Planning from Vancouver Island University. 

Gina BUFFONE, Project Manager

Gina joined Alembic in 2024 as a Project Manager. Her career has evolved to include architectural design, general contracting, construction management, and sustainability consulting. Gina believes housing is a basic human right and has dedicated much of her career to affordable housing. Before joining Alembic, she was Director of New Construction at the Association for Energy Affordability. Prior to that, she was a Project Manager and Senior Construction Manager at Habitat for Humanity New York City. Gina graduated with a Bachelor of Fine Arts in Interior Design from Fashion Institute of Technology and completed coursework in Architecture at Pratt Institute and Construction Management at New York University. She’s earned certifications as a Multifamily Building Analyst, Passive House Consultant and Tradesperson, and LEED Accredited Professional.

Jenny Marone, PRINCIPAL

Jenny joined Alembic in 2014. She provides project management services, from predevelopment through construction, for the firm’s affordable housing projects in New York City. Jenny has over nine years of experience in real estate development in NYC, spanning both private and non-profit sectors. Most recently, Jenny worked in Design and Construction at Property Markets Group, working to help bring two projects through design, filing, permitting and into construction. Prior to PMG she worked at Clinton Housing Development Company, where she participated in predevelopment work, managed projects in construction, and oversaw commercial build outs and capital improvement projects. Jenny graduated from the College of William and Mary with a degree in Economics, and received a Master’s of Urban and Environmental Planning from the University of Virginia.

JONATHAN LEIT, PRINCIPAL

Jonathan is a real estate developer and urban planner focused on implementing redevelopment projects in partnership with community-based organizations. Since joining Alembic in 2006, Jonathan has worked in low-income communities to build joint venture partnerships with nonprofit organizations and to leverage public and private investment for affordable housing, nonprofit facilities and commercial spaces. In particular, he has financed the adaptive reuse of vacant historic buildings and brownfield sites into mixed-use developments, utilizing New Markets Tax Credits, Historic Tax Credits, Low Income Housing Tax Credits and other local, state and federal programs. Jonathan holds a Master in City Planning from the Massachusetts Institute of Technology and was a Rockefeller Fellow through the University of Pennsylvania’s Center for Urban Redevelopment Excellence. He also services on nonprofit boards in New Orleans and was an Adjunct Lecturer in Tulane University’s Master of Sustainable Real Estate Development program.

michael grote, PRINCIPAL

Mike is a community development professional whose unique career path spans architecture, real estate development, and historic preservation. Self-described as an “accidental real estate developer” and “accidental preservationist,” his work is deeply informed by experiences in the aftermath of Hurricane Katrina, shaping his values and commitment to serving Gulf Coast communities. Mike has helped lead the delivery of over $100 million in projects, often blending adaptive reuse of historic buildings with innovative community development solutions. Prior to starting with Alembic, he contributed to community-driven initiatives and disaster recovery efforts with Mississippi State University’s Gulf Coast Community Design Studio and an international NGO. He has also shared his expertise as an adjunct lecturer at Mississippi State University and Tulane University. Mike is a licensed architect in Louisiana and holds a Master of Science in Building Construction Management with a minor in community planning from Auburn University and a Bachelor of Architecture from the University of Houston. He resides in New Orleans with his wife, Kathy, and their daughter, Luz.

NICOLE NELSON, SENIOR PROJECT MANAGER

Nicole joined Alembic in 2022 as a Project Manager. Her previous job was as an urban planner in St. Bernard Parish, Louisiana with the main task of managing the disposition of properties transferred to the government after Hurricane Katrina. She successfully transferred all the publicly held properties to new owners with numerous building covenants that guarantee the community will have a growing housing stock for years to come. Nicole graduated from the University of California, Davis with degrees in Community and Regional Development and Economics. She received a Masters in Urban and Regional Development from the University of New Orleans.