Can the Personal Representative claim the following against the assets of the estate?

If all of these costs were in reference to assets owned by the estate, then probably so. If the oil change was for the PR's personal car, then...

My siblings and I are representatives of my parents will. I'm trying to get things taken care of but my siblings don't want to.

If you have the Will then submit it to the proper people (court, clerk, etc) and attempt to open the estate. Even if you don't have the Will then...

What legal recourse would I have in contesting my parents' will, of which I expect to be left out?

Typically the only person you cannot disinherit is your spouse so even though you may "deserve" a portion of their estate, you are not legally...

How can I get a financial firm to transfer money after a probated estate has closed?

You will probably have to reopen the estate.

Nephew in NH forging Mom's checks. Mom has Alzheimers and lives in Maine. Do I report this in NH or Maine?

It's called theft. I would report him to both Maine and New Hampshire. I would also use your POA to close her checking account so that he does...

Do I need a probate estate opened in the State of NC if I am part of a class action law suit involving wrongful death?

If the lawsuit is filed in NC then the answer is definitely yes. I was asked about a case a few years ago that was filed in another state for the...

It is possible to change the deed on a house for estate tax purposes?

Mom's trust may not even control what happens to the house. If the house is owned as joint tenants with rights of survivorship, then your sister...

What are your reasons? Tax? something else?

I am assuming the property was owned by your mother and father-in-law as tenants by the entirety. If so then when your mother-in-law died your...

How can I find out if my grandmother has a will?

Check the Clerk's office in the county where she was a resident. If an estate has been opened it will be public record there.