Our contributions “artificial cash flow” will continue indefinitely and we may get a little more creative with our next asset. 

And Sec 1031 if you held the property as an investment you can sell and purchase new property using the 1031 process and indefinitely defer payment of the tax.Without one of those two exceptions you will pay tax no matter how long you own the property.

The upside is using the BRRR strategy to capture the spread in prices, allow the 'working poor' to rent from you indefinitely and build a productive cash flow portfolio.Thoughts?

its like selling a used car, make sure you now how many homes you can sell before you need a dealer license 

The short answer is yes, all your deductible expenses borne from depreciation can be carried forward indefinitely until you either sell the property or until you start earning net income on the property. 

And your group of tenants can remain under one lease, extended indefinitely, with participants cleanly substituting for one another.

How does her indefinite occupancy play into the deal?  

In fact, it is technically possible to defer taxation indefinitely if you play your cards right.I'm sure some much brighter minds than mine will pipe in on the thread at some point, so always defer to advice given by Qualified Intermediaries or other 1031 professionals.

Given the condition and size, these are top-tier rentals for my area.My plan is to rent the house out indefinitely, and I'm wondering what the best strategy is.

Or will both properties need to stay in their name indefinitely since they are on the first title?