My name isXXXXX'm a licensed attorney and registered nurse with medical malpractice litigation experience. I very much appreciate your patronage, and am glad to try and help out. I am genuinely sorry for your father's predicament and sincerely XXXXX XXXXX the very best in terms of his health.
Here is how this works. To see if you have viable grounds for filing suit, you must have your father's case screened on the merits by a plaintiffs' trial attorney. That is the only way this can be accomplished, so the first step is to submit the matter for a review. If an attorney accepts the case pursuant to the customary contingency fee agreement there would be no up-front charges to you. Rather, your legal counsel would only get paid out of the proceeds of a verdict or settlement if he or she were successful in obtaining a favorable outcome and winning the case on your father's behalf. This can only be done through having a lawyer review your circumstances followed by a proper medical evaluation. It also requires having an expert medical witness(es) review your father's medical records. Your attorney would arrange for that review and coordinate everything along those lines.
To help folks in this online venue, I am required to follow site rules including refraining from accepting cases and/or making direct referrals to named attorneys. However, I can tell you where I would turn were I in your very shoes. Toward that end, my very next step would be to take advantage of the resources of the non-profit, American Bar Association accredited, National Board of Trial Advocacy Division of the National Board of Legal Specialty Certification. Here is a listing of all such Board Certified Civil Trial Advocates practicing in your jurisdiction: California.
That's the size of things, and you certainly have solid reason to proceed with such a review as you advocate on behalf of your father.
If you have a follow-up question or need clarification, please just say the word by using "reply" to reach me.
I truly hope all works out for your father. I commend you for being an obviously caring adult child. He's fortunate indeed to have you in his corner.
Ben, J.D., R.N.