Of course as a practical matter, lawsuits take time/money and would make it more difficult to find alternative housing, so course of action to consider is finding a trusted third party/relative to be mediator of this dispute with Aunt/Aunt's Father. 

Hello,The gas water heater is not working in my rental and I need to replace it with a new one. I don’t have any tenant there currently so I am not in a rush to replace.I just wanted to explore if there are any other ...

Alternatively, an agent needs the right network to know when an opportunity comes on the market.

It seems to me, intuitively, that covering would be the cheaper and safer alternative but I am open to what others know.

As you may find that alternative more trouble than it is worth, here is a simpler alternative:Only speaking as to CA (but likely in most other states), if you obtain an "abstract of judgment" from the court (for a fee) and record that abstract of judgment at one or more County Recorders (for a fee), the credit agencies will pick that judgment up and report it on the tenant's credit report.

I agree it's up to him to seek CPA advice; sometimes sellers don't think of alternatives outside of traditional options unless presented with them.  

They are right on the money in this case and provide some pretty good alternatives for you.

I would rather just buy the alternate RV Park we are looking at.Thanks in advance for advice!

However, there're affordable DIY alternatives that use generalized computer models in lieu of traditional on-site studies.

I have been weighing both options back and forth, and I think I should keep contributing and work on producing alternate funding strategies to being invested into real estate deals.