Furthermore,  your monthly carrying cost per house is about $260 per house. 

So your options now are 1) greatly reduce your scope of work as to not disturb the asbestos or 2) hire an abatement contractor to remove the asbestos and carry on with your original plan.

I am eventually going to get rid of all the tenants and then screen my own, but would like to keep most of them there for now as I rehab one unit as a time and keep their rents to cover the carrying costs. 

I barely have enough money to get in to the established areas, much less tie it up for years to get beat up with bad tenants and maintenance heavy homes that don't carry enough value for major renovations. :) Just my take for now... but wait a minute and it'll change.

All variables in a deal carry some level of risk.

First, get the property under contract subject to financing (assuming the seller won’t consider carrying back a note).

In my opinion, very few investors are able to successfully do the no money down real estate at the beginning of their investing career because in order to do it you need to use other people’s money, or you need enough education and experience to successfully put together a subject to deal, or owner carry, etc.

Give up that idea.I have a single-family STR with a pool and I worry about it, although I carry insurance.

It's much eaier to pinpoint market rent for 2 BR appartments, than it is for SF homes.The only real way to get a good feeling for how much rent a certain property will carry is to get in the car and look at properties for rent in person.

Recently my uncle (the maker) passed and we been talking of carrying on his wine recipes and sharing them with the world :)I have found a few up for sale and also found land for sale where we could start our own from ground up but of course with the right partnerships in place.