My estranged father, resident of California, passed away in 2008. He left estate to 2 charities & his girlfriend, who he named executor in an unnotarized will witnessed by 2 neighbors. Despite fact that he had my address, we were never notified of death, and the notice of petition of probate was sent to very old address belonging to my deceased grandmother. We never received notice of petition of probate or death. A family member just discovered his death certificate on Ancestry.com. When I took a look at the will, his signature does not look at all like what it did. I have old samples of signature. Girlfriend/executor's lawyer does not respond to my letter requesting affidavit of steps taken to contact us. Would like to pursue with attorney but I cannot afford much. What do I do?