They can file for guardianship over the children which will have the result of taking custody away from the parents, and granting custody to the grandparents. You can get the forms needed for guardianship in your local courthouse, or you can download them here: http://www.courts.ca.gov/forms.htm?filter=GC.
You might also consider consulting with an attorney who handles probate guardianships for further guidance. Good luck!
Answered on Oct 05th, 2015 at 1:29 PM