Even if you go DSCR where they lend to the LLC, they are going to ask for articles of incorporation, EIN assignment letter, operating agreement, and sometimes a certificate of status as well. 

Need a Co. very comfortable with assignments.

Sometimes, I have to go through 5-10 pages of results to find a relevant post.One thing that has helped me is playing around with the search keywords.

To be on the top of the rank, what keyword are you shooting for?

Assignment is in place. 

If you haven’t already, follow and search keywords STR, short term rental, and Airbnb — you”ll receive an overwhelming amount of information.

Your contract rights have to be assigned to the QI. 

If the state has held a Certificate of Sale less than three years from the date of sale by the county tax collection official, the Certificate will be assigned to the purchaser.

I will record a collateral assignment of the mortgage with the county so the lender has good collateral with lots of equity during the duration of the loan. 

All will require a non-refundable deposit (usually $2000 - $5000), most have a "transaction fee" or "admin fee" (usually $295 - $600), and all with require you to pay for the double closings costs unless they can assign the contract to you.