I've done this on one house in order to cut costs - since then, I've added a meter with the utility company but it's a good workaround for the short term. 

Looking for something with low acquisition cost, and meets or exceeds the 1% rule.  

I personally do not prefer to hold high cost SFRs as LTR investments.  

Sounds like you need to have a relationship with a couple of good contractors, 40k for vinyl siding sounds high, what was the material cost.  

First question would be: what is the cost per kwh vs cost per gal of LPG?

Option 2: Electrician recommended mini splits - said 2 units should do the trick and would cost around $6-$7k.Heating system 2 is forced hot air oil furnace specifically for the 3rd unit.

When I inquired about it, plumber said lining, it is usually not prefect since this is PVC breakage not just pipe cracks and the cost saving is not significant enough and maybe headache down the road.I will try to get more quotes and maybe a company that specializes in pipe lining options.I was told foundation work / under slab pipe repair is common in the Dallas TX area due to soil type.

I charge more or the same per night as cabal front homes which cost at least double the price.

It costs me $1,500 to evict a tenant with it usually taking two-three months.

The overhead to start a company is low, but the cost to scale is high.