Fifty-year-old Kathleen Allmond and her son, 30-year-old Tony Ray, have been held in Tehama County Jail in lieu of $30,000 bail since their arrest in October.
Ray earlier pleaded not guilty to cremating his 84-year-old grandmother after
she apparently died of natural causes last year.
Police say the pair then collected about $25,000 of her retirement and Social Security checks.
Prosecutors on Wednesday dropped felony charges of elder abuse and theft from an elder by a caretaker and replaced them with three counts of grand theft.