I owe $345,000. after paying the mortgage and all utilities I would cash flow $500/month. 

The rent to price ratio here almost matches the RTP ratio of the C class areas but the main trade off you experience with access to better tenants is that the taxes are higher. 

I want to pay that debt off and  renovate the houses.

Pay Dirt Flips is her new business!

(I'm thinking it has nothing to do with the replacement property.)Attached is a snippet of the flooring depreciation totals from my tax return.

You pay off $6M mortgage, have $4M in “cash” but only a $2M taxable gain ($300-$400k?).

As in, she’s leaving because she can’t pay.

The extra fees for every little thing are a huge turn-off - $35/day for heated pool and be notified a week in advance OR pay another fee - no thanks. $75 for propane usage - I can go buy a small grill and tank for less than that - again no thanks. 

Hello Everyone,In the next few months, I'll be in a unique position where I can potentially pay off my house.

I pay attention to see if they have been renovated and if they have the same amount of bed/bathrooms, also if it has a pool or not.