Can I sue the attorneys that handled my mothers case: Pagarigan v Libby care?

i understand that my attorneys fouled up the case. Waiting to long to answer. And we lost the case, Pagarigan v Libby care. I would like to know if my attorney is liable for damages.
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I am an entrepreneur in the field of Legal Research, Litigation support and Expert witness testimony.

For starters, you can sue your attorney even if he didn't do anything wrong! No advice can be given on the win-ability of a legal malpractice case unless the details of the case and the conduct of the attorney are known. 

You should contact a local lawyer and discuss the case in detail with him/her.