It is a great retirement vehicle plus it's fun for the family. 

I know the insurance industry is highly governed and regulated, but these warranty companies (home and vehicle) like to fly under the radar.I think this will be the last time I ever have a home warranty unless it's an accommodation from a purchase like this one originally was.

My goal is to retire using rentals as vehicle to do so. 

Appreciate your idea of the modine heaters to provide heated storage for the two vehicle rental as option for ATV, jetski or other toys someone may have.  

Most urban areas do not have parking requirements due to being near local mass transit (as though that will result in occupant not having vehicles).  

Perhaps, if it is an older system, the fan motor has been changed out and replaced with a lower CFM rated fan.Attic insulation could well be a factor, however perhaps an attic fan could also help to pull the hot air out.

My bio on my page has more background information, but I want to get into real estate- more specifically multi-family as I know individuals in my home town that used this as a wealth vehicle. 

@Evan WilliamsYou can purchase real estate within a retirement vehicle. 

@Chris Utter I think I missed where you asked for: their income, credit score, current rental rate, how long they want to live at your property, what pets they have, which vehicles they have (and their plate no.) and an emergency contact. 

When you have equity in a property what you are doing is buying false cash flow at a very high premium due to the opportunity value of cash as a investment vehicle.