I see people working as "Escrow" in the forum. These people work like a kind of brokerage house in their bitcoin payments. And they get commission from the transactions made. I know that reliability is very important for this.
But who gives the title "Escrow"? Is there anyone authorized for this job?
In my point of view and perception regarding about your concern, for you to become an escrow no.1 rule you must be trustworthy in this industry or on this thread. You must build trust to anyone here in this forum, if there is some member here give their trust to you and you prove that you are worth it, that member is the first community who will tell about the transaction you've made, meaning there is no requirement except on having an account in bitcointalk.org that's it.