How about a citizen's arrest for committing a misdemeanor?
Probably completely legitimate. Would be big scuffle, lots of fur flying.
The real question is...if the judge knows about his situation, why didn't he immediately do that? Or at least say, "until you get this cleared up, you aren't the guardian". As TallHappy pointed out, the conflict of interest is clear. Even criminal.
Greer yaps about "the law". Okey doke, Judge. So what about it? When you gonna stop selectively applying it?
You'd have to check the threshhold for citizen's arrest in Florida. I know that in Arizona (I researched it regarding illegal immigration matters), you must witness a felony in progress, except for a couple of unrelated misdemeanors (riot). So in Arizona, you would face charges of illegally detaining someone if you tried to perform a citizens arrest for misdemeanor adultery.