If the group has the ability to compel an action, some...

If the group has the ability to compel an action, some people won't come to the table at all. It has to be a safe place, so you can disclose what your interests are. Generally these groups come up with some recommendation they take to a body, an administrator or legislature. To the extent that they've had all the stakeholders present, every one I've been involved with has been accepted.