Looking for a lawyer versed in open source and open hardware.

I am planing on bringing on bringing a product to market that will include lots of open source and open hardware. All I really want to have the lawyer do is help me make the proper filings and help make sure I keep the proper licensing.

The project it self is a controller for the entertainment industry where 90% of users will not care what is under the hood, just that it works. However I plan on making the unit very hacker friendly by providing solder pads and header locations. I will also provide an Arduino library.

I have been searching for a while and even contacted a couple but have not found the right fit yet.

Thank you.