You are getting me confused about what money is going where.
The assets that are titled in the name of the trust are administered by the successor trustee. If, somewhere in your post, you were mentioning placing funds that were not part of the trust in a trust checking account, then, no, you should not be doing that.
Also, house is in trust and I am trustee so what action do I take when I am ready to sell the house.
I answered that in my first response in this thread: retain a real estate agent and put it on the market. Really, I was not kidding.
The assets that were not titled in the name of the trust on which you were a designated beneficiary now belong to you. With a certified copy of a death certificate and your identification, you should be able to re-title them to your name or liquidate and take cash.
If you were the designated beneficiary on any annuities and insurance policies, those proceeds are yours, also. Not part of the trust. Do not need to be probated.
As for the xmas club, savings account, and vehicle, if you can somehow cajole the bank into transferring the accounts to you, you might be able to avoid opening probate since it appears that PennDOT does have a process to transfer a vehicle without necessarily having probate opened and an executor/adminsitrator appointed. See this document:
http://www.dmv.state.pa.us/pdotforms/fact_sheets/fs-vehtrans.pdf
(The bank should not let you do anything with those accounts unless you open probate and show them one of those short certificates. But, one can never tell what a bank might do or not do.)
If you do need to open probate, then you head to the county Register of Wills office. Check for Register of Wills office at the county website. You can an idea of what probate is all about from The City of Philadelphia and Allegheny County websites:
http://secureprod.phila.gov/wills/
http://www.alleghenycounty.us/wo/index.aspx
Once I liquidate accounts and deposit into trust checking I file inheritance tax right?
You don't really
have to wait. The relevant values are the values on the date that your mother passed away. The websites I mentioned above have some info on the inheritance tax. You can also go to the Dept. of Revenue website:
http://www.revenue.state.pa.us/portal/server.pt/community/inheritance_tax/11414
And check out the forms at:
http://www.revenue.state.pa.us/portal/server.pt/community/inheritance_tax/14695
The instructions on Form 1501 should be useful.