Building on a tradition of innovation, integrity and imagination, CASTO’s management team is actively involved in the organization’s day-to-day operations and guides the company to continued excellence and growth.


Frank S. Benson, III joined CASTO in April, 1975 after graduating from the School of Management of Babson College in Wellesley, Massachusetts. Benson is a partner of CASTO and his field of expertise and specialization for the organization includes financing and management. His professional associations include membership of the International Council of Shopping Centers. Benson has served on the boards of Star Bank, The Buckeye Ranch, Central Ohio Transit Authority (COTA), Columbus School for Girls and Babson College.




Don M. Casto, III is a partner of CASTO. Prior to joining the organization in 1971, he was in the private practice of law in San Francisco, California. Casto is a graduate of Stanford University and Stanford Law School and holds a master’s degree in Natural Resource Law from George Washington University. He is actively involved in the company’s leasing and development activities. His professional associations include membership in the California and Ohio Bar Associations, the Urban Land Institute and the International Council of Shopping Centers. He has written a number of publications regarding retail commercial development. Casto serves on the board of the Columbus Airport Authority and is active in numerous other civic endeavors.




Stephen E. Dutton joined CASTO in 1995 and is a partner. He has an undergraduate degree from Ohio Wesleyan University and an MBA from The Ohio State University. Prior to joining CASTO, Dutton was a CPA with the international accounting firm of Haskins & Sells (now Deloitte) and also held executive finance positions with several private businesses. His primary responsibilities at CASTO include oversight of operations, asset and liability management, capital sourcing and investment activities.



Brett Hutchens is the partner in charge of CASTO retail development in the southeastern United States. Hutchens received a business degree from Ohio University and law degree from Capital University. He practiced commercial law for several years prior to entering commercial retail development in the mid-1980s. Hutchens has been directly responsible for the development of 5,000,000 square feet of commercial retail properties in seven different states, including 1,000,000 in Florida since joining CASTO in 1995.





Paul G. Lukeman, a partner at CASTO, heads up retail development. He joined the organization in 1989 and has been closely involved with its growth during his tenure. Lukeman received his bachelor of arts degree from Dartmouth College and his law degree from the University of Virginia Law School. He previously practiced law as a partner in the Columbus, Ohio law firm of Chester, Willcox & Saxbe and began his development career with R.J. Solove & Associates, a Columbus-based real estate development firm.




Anthony A. Martin joined CASTO as president of State Street Capital, a division formed in 1995. Martin graduated from the University of Dayton in 1976 and obtained CPA certification in 1978. He entered the investment banking industry as a corporate finance professional for a large regional investment banking firm in Columbus, Ohio specializing in the financing, acquisition, sale and joint venture of retail and multi-family real estate. He currently splits his time throughout the year between CASTO’s Columbus and Sarasota offices. He is a long-time member of the International Council of Shopping Centers (ICSC).




William J. Riat joined CASTO in 1995 and is actively involved with the company's downtown and mixed-use development projects. He also heads the company's residential division and directs the development, construction and management of new multi-family projects and future single-family housing projects. Prior to joining CASTO, Riat served as president of Newtowne, Inc. and vice president of architecture for Borror Corp. Riat is a 1973 graduate of The Ohio State University School of Architecture.





Linda Swearingen is the Executive Vice President of Asset Management, a position she has held since 2002. Her primary responsibilities include overseeing the management and performance of the organization’s retail shopping center portfolio as well as acquisition, disposition and leasing activities. Swearingen’s background includes extensive experience in commercial real estate finance, management and retail leasing. Prior to joining CASTO, she was Senior Vice President, Finance/Investor Relations for Konover Property Trust based in Cary, North Carolina and Assistant Vice President in the commercial real estate area of Bank One Dayton, now Chase. She earned a bachelor’s degree in Business Administration from Bowling Green University in 1986. Swearingen serves as a Vice President and board member for the Columbus Children’s Theater and is a board member for Welcome Warehouse in the Dublin City School District as well as member of the City of Dublin Cultural District Steering Committee.