The former is valued based on the income approach and the latter based on comps. 

A reverse mortgage can be paid off, but the parents may have trouble obtaining financing as typically a reverse mortgage is received when borrowers have trouble making monthly payments and have little income but lots of equity.

@Terri B.To increase your Cash on Cash return on investment, it may be beneficial to use debt to obtain income and asset appreciation with less cash expenditure.

Once you complete the property, you could then do a DSCR to pay off the initial fix-and-flip as then you will have the rental income to show for it.

Not for me, I wouldn't want to be forced to distribute 90% of taxable income  to shareholders.Private fund?

Quote from @Linda Roberts: I won't even allow a cosigner from another state.First, you are putting yourself in a tough situation with three or more unrelated tenants, but that's a discussion for another day.Second, I won't allow a renter without income unless they pay their first three months in advance.There are too many variables for me to make a decision.

I'm looking to get a loan for my first non-owner occupied rental property but my current lender is telling me my debt to income ratio is too high due to my student loans and mortgage.

There are different “classes” that have different incomes, emograohics, characteristics, etc.

they screen the tenant for income eligibility and require a physical inspection of the property before tenant moves in and on a yearly basis for renewals. 

You can’t buy much with $50k, at least not the asset class you’ll want with your future income potential.