What's considered a 'good' cash flow in Pittsburgh?

[Yooni Choi]

Hi! I'm just getting started in real estate and am currently working with my realtor to get my first house hacking property, possibly a 3-4 multi family home in Pittsburgh. My goal would be primarily cash flow rather than appreciation unless there's a property with a good chance of flip. 

So my plan is to house hack for few months and then move out so that it can generate some cash flow.. (I will be moving to different states) While I was chugging number for some of the properties that I'm looking at, I came to wonder what would be considered as a good, decent cash flow once I move out. With 5% down payments and all the expenses deducted, there seem to have close negative/only around $100 cash flow each month. Is this still considered ok? It passes the 1% rule, but it barely does. What should I prioritize when investing in real estate? Any advice would be helpful as I'm just starting out and am very excited for this whole journey ahead!