Morgan Lewis specializes in Corporate Law and such with Sheri Dillon being a Trump’s tax advisor since 2005 (she joined Morgan Lewis in 2015). Of course, she gave an advice that selling the assets would’ve been bad for her client’s brand, duh. But she’s not competent to give an advice concerning Government Ethics and Constitutional Law. Morgan Lewis failed to supervise the matter or recommend a more suitable firm as it’s not their area of expertise. They just should’ve said “no”.
It doesn’t remove the responsibility of Trump himself. When hiring this firm, he completely disregarded ethical concerns, the Constitution and everything else but what’s best for him and lining his pockets. It was all as intended.