How are you doing this? Are there some popular law student forums that you can solicit members on?
We are doing this primarily through contacting Law and Technology Journals and inquiring as to whether any of their members are interested in participating. We are also reaching out to career services offices. If there are law student forums I do not know of them.
Is there a danger that by having law student form and run this that established lawyers will be disinclined to join? Is there any precedent for legal advocacy groups founded and fun by students?
That is not a danger. Two licensed U.S. attorneys (in MS and D.C.) have already helped tremendously with this effort. Further, students do not remain in a static state. For instance, I will be graduating in 7 months and will no longer be a student. The extent to which this remains a student org. in years to come remains to be seen. I do not think that a student org. qua student org. disincentivizes licensed attorneys from participating.
There are numerous legal advocacy groups similarly positioned all over the country and the world.