Here’s our best (but not only) guesses:

Sam Ingham is the source with knowledge of the proceedings.

Bryan Spears is a source close to the family.

The trickiest one is the person involved in the initial planning of her conservatorship. Because it could also be Sam OR Bryan!

— Eat, Pray, Britney #FreeBritney (@EatPrayBritney) December 24, 2020