NEW YORK--(BUSINESS WIRE)--Fitch Ratings has issued a presale report on WFMC 2015-SG1 commercial mortgage pass-through certificates. Fitch expects to rate the transaction and assign Rating Outlooks as follows: --$30,306,000 class A-1 'AAAsf'; Outlook Stable; --$17,909,000 class A-2 'AAAsf'; Outlook Stable; --$6,600,000 class A-3 'AAAsf'; Outlook Stable; --$391,844,000 class A-4 'AAAsf'; Outlook Stable; --$54,770,000 class A-SB 'AAAsf'; Outlook Stable; --$41,189,000c class A-S 'AAAsf'; Outlook S