Seem like you are putting in the hard work now to get all the little details finalized. While there are probably legal firms that could help, you are still breaking a lot of new ground on the project so it might not be a perfect fit compared to existing apps and sites.

Beginning a project is easy when you are full of dreams and ideas but it's the end when you start coming down to the little problems that it's not so fun anymore.

Hope you get it all wrapped up and ready to go soon. We'll be waiting.