This phase of legal issues allows you to what has been discussed so far together with your client and whether he/she knows what to do and which to follow in the legal requirements.
If everything is and your client knows how to proceed from here then you can continue with the phase of implementation.
If your client does not know what to do, i.e. to identify the regarding the legal issues, then you can develop certain which your client can and transform into Targets.
You would have to support your client in specifying his/her and prioritising them.