Fair questions- I should have been more specific (and that will be part of my own thoughts once I have a few more replies). To be honest, I want to achieve all of those. 3) may not be that likely as they already have very well established legal counsel, though it is obviously still potentially there as an option and was how I started giving them a bit of help...

Also true that they weren't necessarily looking for strictly legal help but more analytical / advisory as you suggest.... so on that basis, what do you think?