What I understand from the Lisa Cook threads is that a mere allegation of having primary residence mortgages for more than one residence is sufficient to require being immediately fired. In that case, there should soon be three openings in Trump's cabinet:
https://www.propublica.org/article/trump-cabinet-mortgage-fraud
ProPublica has found that three Trump cabinet members have mortgages on multiple homes that are said to be primary residences.
"Labor Secretary Lori Chavez-DeRemer entered into two primary-residence mortgages in quick succession, including for a second home near a country club in Arizona, where she’s known to vacation. Transportation Secretary Sean Duffy has primary-residence mortgages in New Jersey and Washington, D.C. Lee Zeldin, the Environmental Protection Agency administrator, has one primary-residence mortgage in Long Island and another in Washington, D.C., according to loan records."
Sorry to see these folks go, but I don't make the rules. Of course, I assume that there will also be criminal referrals because we all know that Trump would never give his friends special treatment.