Compare other rentals with a similar size, location and bedroom count to get an estimate of what the rent would be while you're living there.

Buy not many people can do this and it requires very good book keeping.

I feel like my "circle of people" really needs an expansion and improvement and I want someone with more experience in the field I want to be in to really help me gain myself to success!

They make their money off of real estate agents, but real estate agents are the worst people to make money off because they are highly unreliable and in and out of the business when the market changes.Their target should be the consumer with higher levels that they can subscribe too for data, since Zillow is linked to the MLS now which makes their data somewhere more reliable.

They require all cash to buy so the people there have money.

@Danielle B when buying out of state you have to know the people you will be working with. 

Lots of people who have trailers don't own the property they are on and sell them.As for the owner of the land expecting tenants to do repairs-there shouldn't be many repairs required to the land, just the trailer that is on it (which your grandmother owns and should be responsible for maintaining). 

Mostly people with minimal RE experience are adding a single ADU and they often make that choice based on cash flow without taking into account the negative equity position.  

But in terms of the company you asked about a quick search shows there are a lot of people that are not happy with the service. 

Also Saw this as the same in shenandoah and people buying condos.