Creative Financing question

[Adam Weisenburger]

On the Webinar this past Wednesday, Brandon talked about sneaky tricks for getting his offers accepted. One of them he suggested offering full price with a contingency of the seller putting 30k in escrow for repairs.

I'm curious about how escrow would work in this scenario.
Is there someone that would verify the money is only used for repairs? And if not all the money is spent would the remainder be returned to the seller? Who would pay to open escrow on this or would you simply leave the money in the same escrow account from the sale?