My question involves court procedures for the state of: California
My Grandma died last year.
While my grandma was still alive, my sister asked her to hold onto a piece of artwork for her, since my sister was moving and didn't want to place it in public storage. My grandma agreed to keep it safe for her.
After my grandma died my sister tried to retrieve the artwork, but my grandpa had already moved out of state, and given permission to a neighbor to sell the remaining belongings in the home including the artwork with proceeds going to the estate.
The artwork had been appraised at a value of $12,000 to $18,000, the neighbor sold it for $650.
Myself and my cousin are the executors of my grandmas estate. My grandpa is due $15,000, when the estate closes.
How should my sister proceed in recovering monetary damages? File charges against my grandpa or the estate? There is no documentation between any parties regarding the care of the artwork, just the known verbal agreement between my deceased grandmother and sister. Depending on the home owners insurance policy possibly filing a claim with them?