Find some in your area to attend and meet people.

I have a higher nightly rate because I can sleep more people, my taxes and insurance are higher.  

So you may go through more people before you find someone hot for the unit to vet.

The second  problem is it is difficult to find people who will do preparation of the land for the mobile hand ,and also  I don't really know what is better/easier/cheaper...putting concrete pillars in the ground every 8 feet or putting down an asphalt or concrete slab.

Sharpen your sales skils / people skills.

I couldn't imagine managing a property from out of state unless you had an extremely strong team of people in your market to help with showings, inspections, repairs, etc.

Except I didn't get sued by the Marion County Health Department; my timelines and the people are the same...

If she paid other people, you basically hired her as a GC.

As @Charles Carillo said, you can make the most of that time, but most people just waste the 4-5 years and then end up doing something unrelated to their degree field anyway.Maybe look into a Trade School, like an electrical one....nice clean work that pays really well.

Most people don't keep good books anyway.