The sale/leaseback that helped sink Red Lobster involved the July 2014 sale of premium real estate underneath 500 of its stores, which generated $1.5 billion. But that money didn’t go back into Red Lobster; it went instead to the private-equity firm to finance its purchase of the chain, Red Lobster’s press release said. That firm was San Francisco-based Golden Gate Capital, with $10 billion in assets.Golden Gate had paid $2.1 billion to buy Red Lobster in May 2014, so the real estate sale was crucial to the firm’s financing. “Red Lobster is an exceptionally strong brand with an unparalleled market position in seafood casual dining,” Josh Olshansky, managing director at Golden Gate, said at the time, a press release announcing…