Good morning @Joshua MartinGreat thing about a VA mortgage is you can do an IRRRL even after you have moved out of the property!

1031 Exchange paid in cash, no mortgage.

(yes, some of the Non-QM lenders that do DSCR have FDIC-insured deposits BUT the large, private lenders that have thrived in DSCR over the last few years are not FDIC-insured lenders). 

Also, a few private lenders or hard money lenders might have some more creative terms for multifamily, especially if you're open to considering that route.

Quote from @Marcos De la Cruz: Quote from @Drago Stanimirovic: For a single-family rental (SFR) that's free and clear, meaning no mortgage, the acceptable minimum annual cash flow depends on your investment goals, location, and risk tolerance.

The owner’s mortgage balance is $315K and they have an interest rate of 3.5% and the PITI is 2126.

You could raise your deductibles on your existing insurance policies (consistent with any mortgage on the property) or talk with independent insurance brokers to see whether you can find a better policy. 

These rents do not cover mortgage/insurance/taxes as it stands now.

Wouldn't it make more sense to raise money privately?

Do realize since they are mobile homes, and have VIN numbers you are not able to take out a tradional mortgage on them not to my knowledge.