The current owner listed last years income as $51,000, but currently has rents at (for the five separate units): $650, $750, $800, $825, $1125 (the math doesn't totally add up so maybe he changed a rent payment at some point). 

However you should consider if your loan has a Pre Payment Penalty.

It's not quite as easy as renting out two sides of a duplex, but with the right marketing and management you could rent out the extra unit to supplement the mortgage payment. 

The seller would need to include a clause saying what you CAN'T do, which is what a pre-payment penalty would address. 

If you are in a state where eviction cost is high and it is tenant friendly you may need a higher credit score to offset default risk and eviction cost.If you are in a landlord friendly state where it is easier to get non paying tenants out you may be able to handle more none payment risk.  

The payment on the refi would be about 40% of renting a place while looking for the next property.Thanks for listening. 

Hello Kyle,When screening applications for the properties that I manage, I always look for:- Income of at least 3 times the monthly rent (verified through the employer)- Credit score of 580+- Rental verification with past landlords (no outstanding balances, no late payments, and the property left in acceptable condition)- No history of collections, evictions, or criminal offenses- No overdue debt (except medical debt)I have found this screening standard very helpful when finding tenants who pay on time and treat the property well!

Quote from @Jack Townsend: I heard David Greene mention a loan product that only requires a 10% down payment on the purchase price and 10% of the rehab budget.

Health insurance payments, Health savings account lots of options. 

Even if you only owe $26,000 on the loan, your payment will still be the same.