In exchange you would do manual labor task, pick-up materials, do office work, pass out flyers, etc. 

I am not sure what the regulations are but there could be more possibilities with hobbiest, collectors, unique storage the list is endless.

There's just an endless number of such tasks to be done that will end up eating all of your time if you do them.

any unique requirements on insurance?

@John D.I am in a similar situation in terms of needing something unique because my risk profile is a lot less and having trouble finding it though your situation is much better.First I would listen to @Jay Hinrichs no one on here has more HML experience as far as I know.  

The professional estate agent will not usually need the services of a lawyer to draw up the preliminary sales contract, as their knowledge and experience will ensure they are proficient in this important task.

Cuomo also directed the state Tenant Protection Unit to create a task force to provide education and outreach to inform tenants of their rights.

If I were you, I would sell off the property and buy a nice cashflowing appartment building (as big as you can afford with 20% down), while having a property manager take care of the everyday tasks.

For example, the particular property I am looking at presently may have some structural issues and will most likely require an entire gut job...in this case I would want to put the work to a GC who can sub out individual tasks or self perform.

Obviously, nothing unique to Roanoke.