Really depends on what you are looking for.

Depending on how hands on I am.

Depending on the costs and a build to rent approach could work if you'd be willing to hold the properties as rentals. 

Depends.

Currently the building runs well, good tenants who are below market rent but there is harmony and dependable cash flow.

So that area is based mainly on ease of longer term (ish) rental income, with about 2-3 years stability depending on how often people PCS and the (somewhat) quality of tenants (bc you never know, even with military).

(The difference in rate depends on the deal structure, e.g., the ratio of rehab dollars to purchase price.)Like a HELOC, you only pay interest each month on the loan.

The 3rd party wasn't able to screen the applicant.

.- Depending on your budget, do you want a small condo or larger residence?  

I think it would give it a little bump in value but it all depends on the buyer.