You'll need to figure out the WiiFM (What's In It For Me) for the attorneys. If they are not engaging it is because what you are offering is not peaking their interests. I know that's a hard edged answer, but I'd rather say something that may not be easy to hear but is honest than anything else.

Understanding the supply side of your market, the lawyers, what they want, what problem they are solving, and why they want it, is a crucial as understanding the demand side.

Doing an in-depth avatar and customer profile including their why is vital.

Let me know if you'd like to discuss on a deeper level.