Monthly income/expenses:
3900*0.9(vacancy rate)-770(tax+util)-300(repair)-1500(interest)-200(insurance)=800. Negative cash flow if you mortgage heavily.
Suppose you go for cash, you will have 27k net on 600k, that's if you manage it yourself.
Unless you can see it going 1M in 5 years, don't see why you even want to consider it.