Bizarre...
I will watch this thread with interest Wisconsin as, from what you said earlier, the buyer was strapped for cash and wanted the domain for a private project and then WHAM in comes Ari Goldberger... Who will also act as witness...?? Something smells fishy and its not the contents of my missus's apple crumble....
Ari Goldberger is not chicken feed and if i was a betting man, he is not only involved in this domain purchase, he is giving counsel to the buyer... My guess, and dont hold me to this, is that there is something in that contract that means something, the rest is just padding.. Again, just an opinion but I bet its the clause that you cannot sell this domain to anyone else.. Thereby creating a legally binding contract that ensures you have no comeback when you sell and find out 2 weeks later that its been bought by Intel or microsoft and its the name of their new product...
But dont take my words verbatim, this is just my opinion... People with no funds DO NOT use Ari Goldberger....
EDIT** Mind you, its a nice cheap way to acquire a domain for re-sell purposes, obtain the rights for $150 and then look to sell it on to someone they know will/might be interested. No TM violation on their behalf, as theyre not the owner, you are.. And if things dont pan out, they dont exercise the option.. Wow.... If TM owner is allerted to the fact that this domain is up for sale, who they come looking for.... YOU... So, might wanna add a clause in the contract that says they cannot look to resell the domain and if they do and it causes you legal grief, they accept liability for your legal costs..Try mentioning that and see what the reaction is...