Welcome back to the Wefugees community and thank you for your question.
I would recommend your cousin to inform the organization about his lawyer. Maybe they can contact him/her and offer to cooperate and coordinate actions in his case. Otherwise it might cause confusion and double work for everyone. From my experience, this will be the best he can do in order to get full support and be transparent with everyone involved.
I hope this helps and please don’t hesitate to get back to us with any further question.
All the best,