I have just recently acquired an interest in real estate and naturally I have a ton of questions.

My one word of caution (from personal experience) a church is a risky venture due to the nature.

Bedrooms require access to natural light and natural ventilation.

Ive been a full-time Realtor for the past year or so, and have come to hate the transactional nature of being an agent.

While I suppose your cash on cash return is infinite, how does the property cash flow with the payments from a loan of this nature?

There is also something to be said about your natural skills as an RN, mother, and woman.

Naturally, I am extremely on guard now and don't want to take the seller on their word at face value.

Waiting for inherited tenants to naturally leave on their own would likely be very expensive and financially infeasible, but perhaps there is some middle ground between waiting and asking them to leave immediately. 

I am going to close in 2 weeks, and then enlarge the heloc. 

I think a good economic argument could be made for an air-source heat pump with a natural gas furnace to provide backup below certain temperatures.