I'd be very interested in helping on this. Was actually just recently thinking of creating some escrow type service for the upcoming Coinbase hackathon (maybe a recreate of ClearCoin or similar).
I'm currently working on a few projects, but can dedicate some time/effort if you let me know some specifics.
I am not very technically inclined but am a licensed attorney that is highly interested in blockchain technology and its ability to further polycentric legal systems.
With regard to the hackathon, there may be some interest in creating a signing system so that multiple arbitrators can vote for a specific outcome and then initiate that decision by instantly signing a specific transaction. (this having more of an impact for other uses).
Also, this system can sign a transaction to be included in the next X blocks so that any particular decision could be appealed to some higher 'court'; if no appeal is made, the transaction automatically goes through at the nth block.
For example, a simple multisig transaction is initiated with a single arbitrator which includes a small fee if and/or when a dispute arises. If the decision by this initial arbitrator is challenged, the disputing party agrees and signs over an appellate fee (which includes the arbitrators fee along with a bond for costs that the respondent to the appeal can claim for costs associated with the appeal). The original multisig funds are sent to a new address, cancelling out the inputs and thereby revoking the original decision transaction.
What else specifically would you need or like to know additionally for this project?