Original mortgage provider requesting documents 8 months after closing, 7 months after mortgage was sold?

That is not all that uncommon. You actually signed documents at the closing table that said you agree to supply documents down the line if they were requested. It is no big deal, just provide it. I lend in MN WI IA ND SD. Find me at JoeMetzler.com - Cambria Mortgage, NMLS 275142