Any successful Landlords on here??

I like your math- "...the 5th one is free...".

My math shows that if we can get another one that cash flows about the same as the current one, it will cut our bills in half.

The rental currently pays all but $600 a month for both houses, including water, electric, cable, property tax and insurance. Another one will cut that in half, and a third could conceivably put us completely cash flow positive for all properties owned.