If you're busy running a ranch and raising a family, you don't want calls at 11 pm to unclog a toilet.

And, factor in the depreciation and other tax benefits, deductions, home office, vehicle expenses, etc. 

I would not buy a new vehicle just to get a write off - Only if you planned to get a new car anyway(I.E. if your old car is worn out).A lot of people are focused on deducitons but not focused on the income coming in / out.Best of luck!

Maybe you are needing a new vehicle for your real estate business - they can help ensure this vehicle is on the list that qualifies.

To throw a wrench into things, if we were talking about real property/structures that were being short term rented, it's possible/likely that your depreciation period would be 39 years, not 27.5.However, a vehicle - which is what an RV is, regardless of how you're using it - is 5 year property.

What is the financing vehicle? 

If that's not an option, I would recommend he look into his state and local municipalities' rules on how to handle abandoned vehicles.

This means that someone who makes $43,000/year would now eligible to buy this room condo, and have access to a vehicle through which to build equity in an asset as an alternative to paying rent. 

Other than the classes I am running for the hills!

You have to be up front about how the property is being used.Also, remember that umbrella insurance will not do anything for you if the underlying property or vehicle is not insured correctly.