WEATHERFORD, TEXAS — The Boulder Group, a brokerage firm specializing in net-lease retail deals, has arranged the $4.4 million sale of a single-tenant building in Weatherford, a southern suburb of Dallas. Spec’s Wines, Spirits & Finer Foods occupies the building at 106 Cleburne Ave. and has approximately nine years of term left on its lease. Randy Blankstein, Jimmy Goodman and John Feeney of Boulder Group represented the Midwest-based seller in the transaction. The buyer was a private investor.