How can a grandparent in Pa obtain full and legal custody from the birth mother?

What can you do? Immediately hire a Family attorney for assistance,

My Husband and my mother in law are on the deed to the house she has passed 3 years ago and now we are selling the house what do

As Attorney Rabin states it depends on what the Deed says and whether the Estate was probated. Check the Deed and then, if it is not Joint Tenants...

My mom passed away her will states all assets are spilt equally between my sister and I - my sister was named sole beneficiary?

Sorry for your loss. Yes, a beneficiary designation controls that asset; the Will does not override that beneficiary designation.

How can I get my name added to home deed?

Since your husband is still alive then why not ask him to add your name to the house via a new Deed? Obviously, you need to seek out an estate...

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As already mentioned, the POA dies with the principal and so you have no further responsibility.

Will my marital assets be at risk if my husband is wrong about how he is handling certain aspects of his father's estate?

I agree with Atty Payne. Hire a Probate Attorney immediately for assistance.

The executor didn’t follow the wil and gave away jewelry not to the benificaries as stated in the will

You and the other siblings must contact a Probate Attorney for assistance. He or she can tell you what options you may have.

My colleague is correct. This will be counted. But do go to a local Elder Law Attorney and have him/her review all the documents to be certain of...

I need Short Certificate form, Can you help?

I agree with my colleague. There is some sort of disconnect if Edward Jones is asking you for a short certificate and the assets are in a Trust. ...

As the others have stated it depends on the value of the estate. I urge you to see a Probate attorney to discuss.