OPC In Layman's Terms: OPC is a real estate consulting firm that provides land and right of way acquisition to public agencies and private companies. We serve Transportation, Redevelopment, Schools, Affordable Housing, Public Works, Energy and Utilities. OPC core services include preparing the property for the project by buying the real estate on behalf of the client, assisting in relocating residents and businesses to the new suitable locations, and arranging for the compensation required by law.