I re-classified your question to be "Criminal Defense" in nature, so that you will hopefully get some more solid responses.

It doesn't look like your question addresses "Child Custody" (this is usually between two parties suing or fighting for possession, access, rights,...

I switched your question to the "Probate" topic, since it seems that is more appropriate. You should schedule a consultation with a probate...

Just because the death certificate lists something, that does not make it true. However, I agree with the prior answer. You should seek counsel...

In lieu of full representation, you may be able to work out a limited-purpose engagement with an attorney, such as only for preparing documents....

It doesn't look like this addresses "Ethics." I re-classified your question to personal injury so that you will hopefully get some better responses.

I don't practice probate law, but I have seen similar situations like this addressed years later. The question of jurisdiction seems very important...

While the real property itself (and any direct increase or loss in value due to market conditions) will probably be her separate property unless...

These are always tricky situations in which to provide advice. Without all of the details, providing direct advice is next-to-impossible....

I am not certain about the "revocation" part of your question, since that gets into federal/Dept. of State regulations. You may, however, be...