A company controlled by Wellington millionaire developer Glenn Straub is suing Arlington, Texas-based builder D.R. Horton Inc., claiming the nation’s largest home-builder backed out of a big lot purchase at the Tesoro Club at a cost of at least $20 million in lost revenue and related damages.

Straub bought the 1,400-acre Port St. Lucie country club and unbuilt lots in a bankruptcy sale in 2009, but the lawsuit claims D.R. Horton evaded a lot purchase and construction deal that “crushed the market value” of the community.