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

For fix-and-flip pros, BRRRR enthusiasts, and wholesalers alike, the landscape looks different than it did just a couple of years ago.For flippers: What’s your approach to finding end buyers in this market?

Can try to reposition to Class B, but neighborhood may impede these efforts.Vacancy Est: Historically 10%, but 15-20% should be used to also cover tenant nonpayment, eviction costs & damages.Tenant Pool: majority will have FICO scores of 560-620 (approaching 22% probability of default), many blemishes, but should have no evictions in last 2 years.

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?

They would offer a more hands free approach, but eat up the profit in return.

I think it will be good to look for a balanced approach.

This approach avoids downtime and lets you start earning right away.Future Bookings:Taking over bookings can get tricky since Airbnb doesn’t allow direct transfers between accounts.

It takes the pressure off as deadlines approach and gives you room to solve unexpected issues.

Cost segregation utilizes the MACRS approach.

If the seller isn't responsive, then do like the idea of telling the tenant you tried, and see if they can get some free legal assistance from a tenant resource center.It is a good reminder as closing approaches to ask the seller to keep tenants updated on the pending sale and when ownership is scheduled to change.