What type of repairs and/or "reinforcement" should I consider, or has anybody had this issue?

It's in a good area and pretty good condition with minimal repairs needed and all appliances convey.Rents should be $1400-1600 range.

Concrete may not cuddle to your toes in the winter, but the last time I had to do major repairs on concrete it took 48 hours and cost about a hundred bucks.

How do I estimate repair cost?

Keep in mind you still have taxes, insurance and repairs even on properties not currently rented.

I cash flow $146/m with no turnover, no repairs, and I manage myself.

Wait until you have an extended vacancy or a major repair.

Using the 50% rule and a new >$800 PI payment you are ranging from several hundred negative cash flow to maybe $100/month if you happened to score one of these deals in a slightly higher end town.Obviously if you just did $50K of rehab you should cash flow much better than this the first several years as repairs and capital expenses should be low, but in the long run you need to account for them.

. $85 repairs + $150 Misc(I read that as Cap Ex and General Maintenance) looks good.

Are the occupied houses in good shape or will there need to be repairs on them as well?