Can I just say that you should be very careful about describing your contracts as "Bulletproof".
There is honestly no such thing as a bulletproof contract.
Secondly, telling people that "top attorneys" drafted the contracts is meaningless. That strikes me as just pure throw away marketing speak.
There are many things to consider when drafting this type of agreement and I'm just not sure that your description of the service should give freelancers great comfort.
Just my two cents. I do love the idea and know first hand the importance of having a contract in place.