Let me begin by expressing my sympathy for both your mother's passing and for the difficulties caused by Kaiser. My sincere condolences.
I would suggest that you have a viable civil lawsuit for negligence on the part of the hospital. As you have indicated, there would appear to be no reason for such an extensive delay. Further, I suspect most people would agree that there can be nothing more traumatic than the death of an immediate family member.
My speculation is that the negligence will be relatively easy to establish. However, it may be a bit difficult to demonstrate quantifiable losses. Please don't misunderstand me, I don't mean to suggest you shouldn't consider moving forward, just that you put some time into determining your losses.
If you are looking for an attorney to assist you, an attorney focusing on civil litigation would be appropriate.
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