Here is the problem with having a park full of these ancient homes even if they are privately owned.

No ancient Romans still lingering around.  

Maybe we will run into some ancient wise man in our travels who can clear it up, but for now, especially in this market it makes no sense to deal with all the drama. 

All three of mine are ancient...Again, congratulations.

@Steven Lowe here is the quote that I am referring to:“Slave customs in ancient Babylon, though they may seem inconsistent to us, were strictly regulated by law.

If you've never read that book, it's a very good if somewhat dated piece about basics of personal finance and investing set in the historical backdrop of ancient Babylon. 

They have been good as tenants, but I'm charging well below market with the agreement that the units are as-is and non-residential.The building is partially renovated, partially demo'd, has ancient plumbing and electrical.

It was an 8 by 48 foot wide trailer, had an 8 gallon hot water heater and if you were taller than six feet you were in danger of banging your head on the ceiling.Then these men climb back into their ancient but giant Buicks or Oldsmobiles and continue their search for a rental for what they paid back in the "good ole days".Gail

Well I am an accountant that started with using Yardi Enterprise (discontinued and it is ancient software).