Their in between 120k-260k for the home I want to buy and rent out but I don't know what the mortgage would be, or how much rent should be for me to even possibly cash flow off of it or even after that how much I'll be purchasing the SFH's for if that's what your asking.

However, it's feasible for me to hold onto this property anyway and fix these issues regardless.And yes, the mini-split has a unit for each room.

@Kash Tacke I'm a big fan of ADU's in general especially here in the mid west, yes you could potentially be on the front of the wave, but housing density is the solution to the affordability issue, anytime you are investing with affordability in mind is a great strategy to me, and sound like there are some incentives or at least supporting winds form the local city, that in itself seems like it would be worth at least approaching an architect or contractor to bid up some plans or concepts to take tot he city.  

Not to mention they wrote of over $300k worth of taxes for me utilizing a cost segregation study. 

We're exploring creative ways to provide him with the cash needed for the down payment while avoiding triggering a taxable event.One strategy we're considering is purchasing his future primary residence ourselves, making the mortgage payments, and then, once we've built enough equity—comparable to the appraised value of his rental properties—transferring the title to him as a form of exchange.What are your thoughts on this approach?

I completely agree with removing Reverse Trolling in a clearly defined form. 

So if the deal goes right, I get a return in the form of equity on the house, and my rent is also reduced since let's say, as part owner, I would be receiving a portion of the rent (which I would be paying...).

That was first BIG red-flag for me, pitching it all as simple, easy, sure thing, quick turns etc..

Send a notice: The landlord can post a notice in a visible place and send a notice by mail to the tenant's last known addressRemove belongings: The landlord can remove the tenant's belongings and store themRecover costs: The landlord can recover the costs of moving and storage from the tenantSell belongings: If the tenant doesn't claim their belongings, the landlord can sell them at a public sale(End)Please only communicate with the tenants - all of them - in written form only so it can be used in any collection/court engagement. 

For me, if a place has the mortgage paid off, I leave it...but that is me.