Partner, Law Firm of Tressler, LLP
Fellow, American College of Bankruptcy
Co-Chair Emeritus, American Bankruptcy Institute's Real Estate Bankruptcy Committee
Professor Collen is a Chicago-based partner in the Law Firm of Tressler, LLP. His practice has concentrated on complex chapter 11 matters for over 25 years. He is a prolific writer, having written a single-volume treatise, "Buying and Selling Real Estate in Bankruptcy" (West. 1997), as well as numerous scholarly articles on bankruptcy topics. He is a Fellow of the American College of Bankruptcy and Co-Chair Emeritus of the American Bankruptcy Institute's Real Estate Bankruptcy Committee. He speaks frequently on bankruptcy topics throughout the country. He is a 1980 graduate of Georgetown University Law Center where he taught legal research and writing and won the prestigious Leahy Moot Court Competition and is a summa cum laude graduate of Dartmouth College, where he was elected to Phi Beta Kappa.
Professor Collen teaches Partnership, LLC and Alternative Entity Bankruptcy.