A Denver real estate company that recently adopted the Shorewood Real Estate brand has filed for Chapter 11 bankruptcy protection. LBH National Corp., which does business under several Shorewood entities, filed the voluntary petition on Thursday, listing upward of $5.9 million of liabilities. LBH National Corp. is headed by Roger Herman, whose Denver-based The Herman Group acquired Manhattan Beach, Calif.-based Shorewood Realtors in 2014.