He will likely have a web-based seminar. 

Could you share their website, while looking around for them on the web I wasn't able to find them.

You can get one for your business by going out to the .gov web site.

I fear that the standard versions one might get from legalzoom or through other web sites may not protect me enough.

The most recent information I can find on your web site posted by anyone from your company is from 2013.

@Mike CatalfamoI was referring to the web sites.

.- is the letter from the therapist a local therapist, or some web based ESA letter?

From the web search  I have found that it is tricky renting to foreign diplomats because of the diplomatic immunity they have.

Without true intent and ability to perform, you have a voidable contract, this was not touched on I don't believe in that video or by Jeff on his web site, but this is basic contract law.

The trailer like that I used had steel pockets along the side rails for 2x4s, so you could build yourself a "fence" for the outside edges of the trailer if you needed something more than a flat bed.If there is a Ford, Chevy, or Toyota dealer in your area that has a big commercial truck department, you might prowl around their lot on Sunday, or on their web site.