Executives with TGM Associates recently sold the Willow Grove apartment complex in Danbury shortly before acquiring the Avalon complex at Stamford Harbor. TGM Willow Grove - Danbury, CT AvalonBay Communities sold its Stamford Harbor apartment complex and adjacent marina for $115.5 million to TGM Associates, a New York City-based real estate company that owns TGM Village at Stamford Apartments on Bedford Street.