A deteriorating situation at four Brooklyn office buildings is adding to the company’s existing debt issues. : (Bloomberg)—Kushner Cos., the real estate firm owned by members of Jared Kushner’s family, is staring down another crisis. The firm’s partnership in four Brooklyn office buildings barely covered debt payments last year. Now a global recession caused by the coronavirus pandemic is threatening to disrupt a financial high-wire act: balancing an ailing major tenant, WeWork, and $300 million of loans issued in 2018 by South Korean insurers.