Paid Off SFR or sell and invest in MF?

[Joe Kasprzyk]

Afternoon everyone. Here is a baseline question for you. (From a newer Bper)

The scenario.. I have 2 SFR (1 condo and 1 townhome). One of them is paid off, and giving me cashflow (even with stupid association fees) on a monthly basis. I'm writing my business plan to hopefully leave my 9 to 5 one day, and my next step I feel is an important one.

In your opinion should I.. 

Save up for another down payment for a SFR (Take 6 months or so) and keep taking in the cash from the two existing.

Possibly take a HELOC on an investment property to reinvest in another SFR.

Or sell the asset, and buy a MF?

Any direction, opinion would help. 

Thanks

Jk