These two options may be better than heavy special assessments.  

They are currently over valuing the park and it looks like the only way to get a good deal is to utilize a hard money lender in town and make a cash offer.

It seems like a sweet deal to purchase a house with a Rent to Own tenant as they pay for utilities, repair and maintenance - and I wouldn't need a property manager since I am out of state.

Do we have (state by state) benchmark utility cost data I can use to compare my bills to?

You can use a custodial account or if you wish to have more control special purpose LLC can be utilized to gain checkbook control and minimize custodian fees and eliminate their involvement in the investment. 

@Willie R.I agree with Account Closed that title companies in Texas utilize Texas lawyers.

Have you utilized the BP Calculators to assess your rental business?

For the short(er) run, you can remove the tile and lay heavy plywood (3/4" or 1") on top of the existing sub floor - and shim to level.

Where are your expenses for legal, advertising, janitorial, utilities, etc. ? 

The utilities are still in and the survey has been done.