She shouldn't be able to sell the car without the tittle. You may want to contact the police to assist in obtaining the keys to the car if you have the title in your possession. You may have difficulty getting the ring without knowing exactly where it is. Did your father have any bank accounts? If he had a joint account with his girlfriend it would automatically pass to her. If the account was in his name only you may be able to complete a small estate affidavit to transfer it and still avoid probate.
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