Specifically for the rent-to-own model do you know which components go into determining "strength of the deal"?

I would not rent out the space as a separate unit but I am trying to determine if I can legally duplex the first floor and garden level units to create more living space (there is already a stairwell that could be used).  

I agree with the "it depends" approach when it comes to determining reserves, but generally, it should align with the age and anticipated maintenance needs of the property.For example, we have a duplex built in 2003 with the original AC units and roof.

Who pays for maintenance is determined by the written contract between parties, not a list on the internet.

.- You could also try selling to another naive investor, but you don't have the infrastructure to do so easily. 2) You'll need to evict the tenant if you haven't already.3) Have 2-3 agents tour the property and take videos of their recommendations of repairs.4) Review all of these to create consensus Scope Of Work (SOW). 5) Get 2-4 bids on the SOW6) Review bids to determine cost effectiveness of what to actually do.

I would try to network with other MTR landlords in the area to determine best course of action 

Checking their calendar helps you determine if there is strong demand.

I guess I need help determining how to locate properties to be able to crunch the numbers. 

A good agent will ask about your ROI & cashflow, then help you work backwards to determine an offer price to make your numbers work.

I agree with other responses here, and to piggyback on them it seems everyone plans to 'own forever' when they sign a 30 year lease or finance term, and then things change (job, relationship, life events, etc) and folks try to sell the property with 25-28 years left.Banks do not look at power bills when determining DTI, but they will look at a solar loan/lease.