Steven J. Baum, P.C., was a law firm headquartered in Amherst, New York, United States. It was founded as Marvin R. Baum, P.C. in 1972, and remained under that name until Marvin Baum's death in 1999, after which his son Steven inherited the business and renamed it after himself. Its practice was primarily in real estate law, particularly in representing lenders and servicers in residential foreclosure actions in its later years.