Recorded Deed Transfer Error

I just refinanced my Uncle's property and the mortgage is soley in my name. The escrow company fild the deed in our names as tennants in common not joint tennants. They had told me they updated it. When I got a copy of the deed-late at night (last night) I saw the mistake. I called escrow and sent them an email immediatley when I caught the mistake. They sent me a new deed transfer as joint tennants this morning- however, while all of this was happening my Uncle died. I did not get the deed correction notarized or filed because he died. The Escrow company wrote me a letter saying they made a mistake. Am I going to face California Probate? Or is there a way to fix this so it is Joint Tenancy- even though he died and that i have emails stating there was an error to be corrected to the Finance Person before the deed was filed and another email the night before pointing out the error?