Doing a quick analysis on this without all the facts I'm seeing a 6.6% cash on cash return with a purchase price of $200k so I probably wouldn't go more than that and to be honest that return is borderline for me. I personally like to see a cash on cash return closer 10% or higher because for me, I like to beat the S&P historic return of 7% for it to be worth my time instead of dumping my money into vanguard.
I'm assumed a 30yr mortgage with 20% down, 7% vacancy, 10% prop mgmt, $6,000 property taxes for all 3 properties (average per house based on my area), also included CapX, insurance etc as well as the $5k immediated repair estimate.
I'd play around with the numbers yourself and see what you get and what you'd expect. There's been some great CF spreadsheets posted in this forum that I've found helpful.