For example, if a tenant refuses to leave at the end of a lease, how difficult would it be to get them out?

If pepper spray goes off by accident, it doesn't leave a hole in you.

If she moves out in seven days and leaves the house undamaged, you can apply her deposit to the unpaid rent and forgive the rest.

The idea of letting someone bring their own RV, live in it a week or three, and then leave with it and their mess is great.  

Monthly cash flow, retirement, leaving your job.

You will not see $1.3M you will only clear the difference of that 25% ($325K) minus taxes, Seller/Buyer fee's, attorney fee's might leave you with $180k amount split 2 ways so $90K each.You could take out a Heloc and pay him to walk away from the home so you can turn it into your home plus rental.

One thing I would mention though - doing STR just to save taxes often leaves you operationally unstable or too detached from the management to be successful.

Are they tracking what IPs do after they leave their site?

I'm not going to hold a tenant hostage or make them pay rent if they finished their work contract early and need to leave town.

In my experience, the turnaround time is fairly short and can be done in January/February and still leave enough time for your accountant to file taxes.