As far as Lance Kawaoka's claim that the reason there wasn't much response to a post about checking on the quality of a large, well-known, super-markety sponsor is that members wouldn't want to declare that they are a high net worth individual just doesn't hold water.

He claims anyone can do what he did, but he teaches the exact opposite of what made him successful.How did he find success?

You got some solid advice above check with your lender and get in contact with an attorney like @Bob Floss II who can help setup the OA.Assuming there is no pushback from your lender, you should be able to do a quit claim deed to retitle. 

I don’t know what license you hold, but if I make a claim like that in a public forum against other lawyers, at minimum I am facing an ethics complaint.

Depreciation Benefits via Leverage: While you can't claim depreciation personally on IRA-owned real estate, SDIRAs can use non-recourse loans to purchase property.

You claim it was because we took to long but as I recall the things we were going to do for you were pretty much talked about and scheduled  within the same month of you purchasing the property.

Quote from @Ryan Daulton: Since learning that cash flow from real estate that was purchased from self-directed IRAs is taxed, and that I would not be able to claim depreciation on this property, what are the advantages to buying real estate with self-directed IRAs vs. other investment types like stocks and mutual funds?  

The previous owner claims they never had the titles to these trailers, so that is not option. 

Paulette, it is good to call out these bad contractors and unfortunately you are caught in a bad situation on what to do, start by a small threat that you will contact the BBB and report a claim if he does not show some progress, or if you know an attorney, maybe a simple letter from one may get him worried and he may start showing up.

It would be like if someone prepared to sell by painting to create fresh visual interest, but chose fuscia and lime green...those colors would certainly catch the eye but I'd never claim that they overdid the curb appeal by painting with too much visual interest.