Additionally, be sure to have a solid business plan in place to present to potential lenders.2) In addition to a construction loan, you could also explore other financing options such as traditional mortgages, lines of credit, or even private investors.

My husband was thinking we could take the mortgage interest deduction (since we don't have a mortgage on our primary residence), but now you have me wanting to run the numbers with 75% or more down. 

Is it nearly impossible to obtain a mortgage and operate an STR?

Hi, I am selling a property and willing to hold mortgage.

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Most lenders don’t consider manufactured or mobile homes real property and there are lots of requirements and stipulations a buyer has to meet to qualify for a mortgage.  

Like Robin said, you could stumble on a bridge lender that will give you a ton of proceeds in mortgage, but that runs its own risks.If you want the conservative, but open to lending to your LLC with outside investors, get on Fannie Mae's website and look up the small balance brokers.  

IDI Core is more for private detectives and stuff like that

Also, have a chat with a Missouri mortgage lender—they can explain the different loans and if they have any rules about living in the place.