Central Pa. design and planning firm merges with York firm PennLive.com 3 hrs ago Daniel Urie, pennlive.com A midstate design and planning firm has announced it will merge with an architecture and structural engineering firm. Richard F Mulá Architects is based in Lancaster and also has an office in York. “With this merger, we are combining our strengths to offer a deeper understanding of the professional services we can provide to our clients in different market sectors,” Richard F. Mulá, founding principal of Richard F. Mulá Architects said in a press release. “Ultimately, we will have a bigger impact and presence within the communities we serve.”