The lender is pushing you to do this to get an FHA loan.

Here’s a breakdown of the main ways investors fund their first deal while minimizing their own cash outlay:1.Private Money & Hard Money Loans– These lenders focus more on the deal than on your personal finances.

Are there any hard money lenders that lend 90%?

It wouldn't hurt to set up time to meet with agents, property managers, lenders, and others while you’re visiting your markets of interst.

I purchased this deal with a private/hard money lender.

SubTo, "Subject To" is not a contract between the new owner and the lender.

just double checked my lender is now 80% LTV for short term rentals only 85% for long term rentals

I have built in the past and I do not understand how anyone can build a house for 250k that will last.As an agent I focus on high end relocation clients and many are positively surprised by the build quality compared to the south.

Some lenders offer discounts to return borrowers so maybe look into both flip and DSCR rates when finding a lender. 

The problem is, and here's where I really screwed up, is that now I'm told by lenders that because we have a commercial tenant banks won't refinance the property.