The Collingwood Group named Tom Cronin managing director to head the company’s secondary market activity. The Washington-based advisory firm said Cronin will focus on helping clients recognize business opportunities in the nation’s capital and the housing finance industry. Cronin had been senior managing director at Clayton Holdings Inc. Joe Murin, chairman of The Collingwood Group, said Cronin’s “long and strong experience in the mortgage banking industry is a great addition to our organization’s list of qualifications and the capabilities that we bring to our clients.” Write to Jason Philyaw. Follow him on Twitter: @jrphilyaw