What happens to Miller Trust fund arrangements in the event the nursing home recipient gets better and is able to return home to live?

Onyx, I am moving your post back to the front page. Hopefully a caregiver who is familiar with a Millers Trust can answer your question.

A Miller Trust, aka Qualified Income Trust, has to be IRREVOKABLE (sometimes spelled irrevocable) to qualify for Medicaid. That means the trust cannot be changed. Talk with the lawyer that helped create the trust to see what options may exist. Otherwise you may be stuck with the trust and Medicaid in-home waiver care with the state being the recipient of any funds left over at death. That proviso is why you need good legal representation when you create a Miller trust.

Guestshoppe is spot-on in her answer. Miller - as far as I too am aware - is a 1way permanent document.