yyang@imfpubs.com Mortgage Bankers Association is concerned that many lenders won’t be eligible for a new 20 percent tax deduction for pass-through entities. Lenders that retain their production in portfolio look to be eligible for the deduction, but there is uncertainty around businesses that originate and sell loans. In a letter to the Internal Revenue Service, the MBA argued companies that finance real estate loans should be able to claim the deduction. See this Friday’s edition of…