That would be good advice. Unfortunate for him, he sort of strikes me as someone who is used to developing his own stories and expecting (demanding?) others believe them.
It may be that he doesn't fully understand that his expectations may not be met. The game has changed. He will probably eventually get a lawyer who explains this to him. (And I understand in general terms he shouldn't need one...though in his specific case he could use someone who lets him know how the real world operates...especially if you appear to be playing fast and loose with the truth.)
I can see him arguing with his own lawyer.
JMO