If your padsplit residents have vehicles that can cause parking issues.

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.

For example, if your driveway only fits two cars, you need to know if tenants plan to bring several vehicles, as this could lead to parking violations and HOA fines.Don’t forget to screen pets, too!

I found it to be a great vehicle while I was working a W2 job as an engineer.  

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. 

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

Unkempt lawns, trashy or broken down vehicles, mattresses and trash on empty lots, boarded up houses, bars on windows, dealers and hookers on the corners, the lack of stores or gas stations, occupied properties are dilapidated, etc.Or when Google maps shows stuff like this:

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!