How do I ensure that the deal is structured in a way where I can get them their capital back after the financing period, and is this something that's typically done? 

If they do terminate the lease, be sure you're given proper notice per lease (read it) and applicable laws. 

I work with a bunch of busy attorneys and I got enough advice on how to properly evict him.

I work with a bunch of busy attorneys and I got enough advice on how to properly evict him.

One of the requirements for a multi is that every living unit must have independent utility services or at a minimum 1. legal provisions ensure and protect access to utilities for repairs, even if passing through other living spaces, 2. easements or covenants protect water connections, and the VA approves of a maintenance agreement; 3. there are separate service shut-offs for each unit. 

I work with a bunch of busy attorneys and I got enough advice on how to properly evict him.

The project would be in Los Angeles proper in 90047. 

I would probably pass before her, however, I lost 3 family members in a short period and seen how their kids and proper family lost out BIG TIME...

@Harrison CookYour post kindles lots of questions.In the "good old-days" most heating systems were vastly oversized for the building they were heating - energy was relatively cheap, insulation was non-existant to poor ... so it was easier and safer to {drastically} oversize.Today, while energy {in North America}  is still relatively cheap for the moment,  we have a much better understanding of how to make buildings more efficient {though you might not think so looking at the construction industry in the U.S.A. and Canada}  and there are often more cost-effective measures than simply replacing an old, over-sized heating plant with a new, over-sized heating plant.You really need to - or at lease should -  perform a heat load analysis to properly size your heating system, a component of which, is determining the rate of heat loss of the building envelope.  

If you can prove that they did not notify you properly, you may win in court, but that will probably not get you any money.