Can a heir transfer their rights?

[Arcinio Arauz]

I found a house that is owned under the name of the deceased. I found next of kin but she opted not to go through probate.  There are two other family members and they also wish not to petition even after I offered to pay for the filling. They plan to let it sell at a tax deed auction unless I can find a way to convey title. So I'm wondering...is it possible in California for the heir/s to assign, transfer or relinquish their rights of succession to me ( a non family member) ? If so what type of documents and how would I go about doing this. I'm wondering if this is possible and if so...would I then be able to petition for probate? Your thoughts BP family and @RickH