It will give you peace of mind. 

Replacing the oversized and bulky furnace and water heater tank with underfloor space heating and a much smaller tankless hot water on demand we've just enhanced the cubic foot space dramatically by as much as 60 to 70 cubic feet.There's a lot more to this story but I hope it gives you a little insight into some of the challenges and perplexities that exist with old and even new MH's be they PRE HUD trailers and/or mobile homes or HUD Manufactured Homes.

First, the REI has almost ZERO impact on City zoning and is frequently a victim thereof (ie: constrained from enhancing a SFR into a Duplex).That implies that 'added value' will also be limited to enhancements that FIT the current zoning of the property. 

If they won't go peacefully or timely, go through with the eviction proceedings.

Think longer term and gain peace.

The biggest hesitancy has been that it feels like it would infringe on the whole peaceful enjoyment aspect and cash flow... but I see your logic for sure!

That work enhanced my skills in working with and understanding people of various backgrounds as well as my skills in negotiating, managing budgets, and managing projects.

Or if you wish to have greater control of it (similarly to a truly self-directed Solo 401k I mentioned above) then you can enhance it to Checkbook IRA. 

My advice: spend a few hundred bucks for peace of mind even if there's no evidence of a tank.

I suggest to avoid Craigslist until it begins to use image recognition software to add a degree of automation to enhance its security.4.