Corey Martin, co-founder of Portland-based PATH Architecture (we featured their Butler Residence in our pages a little while back) has left the five-person firm to become a principal at 45-person Portland firm THA Architecture. Martin worked at Richard Potestio and Allied Works prior to starting PATH in 2005 with partner Ben Kaiser. The firm has gone on to produce critically acclaimed projects ranging from the Park Box multi-family residence to a locker room for the University of Oregon. Martin is excited, but a little sad about leaving a firm that was still experiencing high levels of success. "I'm still torn up about it. It's the hardest decision I've ever had to make," he said, adding that he's still unsure of PATH's future. "It will continue in some form," he said, although that might mean merging with Kaiser's development-related firm, the Kaiser Group. One of Martin's goals is to raise the design bar at THA even higher: "I look forward to building on THA's amazing design legacy," he said. He noted that the firm sought him out not only for the quality of his architecture, but for his ability to bring in new clients and to get people excited about his work. "They've put a lot of trust in me and I hope I can exceed their expectations," he said.