Maryann Misiolek is the Owner and Operator of MarDav Enterprises, LLC, a real estate investment and renovation firm based in Hummelstown, Pennsylvania. Founded in 2001 and incorporated in 2007 alongside her husband, J. David Misiolek, MarDav specializes in the rehabilitation and resale of properties throughout Central Pennsylvania, revitalizing communities one project at a time. With a background in industrial engineering and management science from Lehigh University, Maryann combines technical precision with creative vision—transforming distressed properties into beautiful, functional homes. Known for her strategic planning, financial insight, and hands-on leadership, she has built a business that reflects both entrepreneurial drive and community care.