But a lease would prove that at the end of the tenancy you expected her to return the premises as rented and I would add a line in that says if the trailer is ever abandoned or if she fails to remove it on the last day of tenancy it shall be considered an abandoned vehicle subject to disposal by Landlord.Does your insurance company know its there?

I spoke to 3 PM companies, 2 of them being RE brokers and property managers.

Are there better companies to buy these homes from?

Another way to get a good idea of what's out there is by reaching out to property management companies in those markets.

To address this maintenance issue, I sent out a reputed garage door company to look at it. 

I have neither the expertise nor time to try and manage it myself so I am in the market for a PM company.

Unfortunately there competitiveness in the market and cut throat antics give the other offices (company) a bad name. 

I think it will depend on your area as most of these third-party companies pull the data directly from the county and may or may not filter that data well to pull out vacant land.

I work as an architect in NYC and I work for a company that is an expeditor

The cleaning company policy was to stop and wait outside for law enforcement when they found drugs.