As for cash flow or pay off early, I just posted a longer answer to another thread just started about leveraged vs unleveraged. 

I’d call your local bank and just do an unsecured line of credit or a personal loan for such a small amount and pay it back ASAP

I recently purchased a rental property for cash with a short term unsecured loan because it was such a good deal(numbers below).

This is right up your alley.Cap rates do not tell you anything meaningful about a property except the unleveraged returns and risk (lower cap rate = less risk).

Most of these homes are very poor locations and very poor condition.You need to hire someone to go out, access the property (drill out locks, install new locks, and install lock box with keys,) clear the property (many of these properties have squatters living in them,) secure the property (lock windows, fix broken/unsecured points of entry,) evaluate the home, build a rehab budget, and send over pictures and/or video.There are several GC's and home inspectors who are offering these services for the MI/OP clients.

Sounds like business term loans, unsecured business lines of credit, or a personal loan could be a to get what you need accomplished. 

In a cheaper market, you can get that return unleveraged.

Even credit card debt is better, although higher interest rates, it is unsecured debt. 

Can you get an unsecured line of credit.

HELOCs typically function exactly like a credit card except thy are secured by the property you are borrowing against, whereas a normal credit card is unsecured.