This is not a question for an internet question and answer site. Making sure the title is correct is critical to avoid very costly court...

A request for attorney fees and/or sanctions can be made if proof of breach of fiduciary duty can be sufficiently made and the judge agrees they...

Probably. If her mom has passed and your mothers interest has already vested she can will it to whoever she wants.

Unfortunately, she cannot back out of the agreement unless she can prove fraud. Bullying by her attorney is not enough.

Get an attorney to protect your interests. She has the power to sell and it sounds like she will do so unless you stop her.

I agree. It is not meant to offend you but to medically diagnose a condition you appear to have....

No. The other party was not obligated to mediate, and you filed the suit. Now you get your day in court like everyone else.

It is unlikely a will would be thrown out for those reasons. I don't think anyone would know if there is precedent for it.

Search online for an obituary. If you don't find one, have an attorney send a written request to the county clerk. Unless you are next of kin,...

Yes. You can list multiple properties on the spousal property petition. These petitions are tricky however. Be sure you complete it correctly.