Arizona, 70k cash, what should I do???

[Joe Vettorel]

I own a property worth 98k. I took a 70k mortgage out on it. I currently rent it out for 550 a month. I have the 70k in cash ready to invest in another property. My interest rate is 5% paying 440 a month so I'm pretty much breaking even. What should I do?  I originally refinanced to afford house I'm in now, but have got caught up. Should I pay off loan or look for a by and hold? All the properties I've analyzed puts me below the $500 cash on cash is it worth keeping the loan ? Unsure of route to take.