Is now the proper time to file a lawsuit?

My mother is 93, deaf and has been in a nursing home for about six months. She is a cripple and confined 24/7 to her bed. She weighed 115 pounds upon entry into this nursing home and now weighes 70 pounds. She is skin and bones. She also has a gruesome bedsore on her lower spine, for lack of proper care in the nursing home. I have photographs and they are heartbreaking. Wife and I are considering a lawsuit against this nursing home for neglect. I have kept perfect records of dates and times and incidents, concerning her neglect. Question: is the time right now to contact an attorney? My state and the Federal Government is also investigating this nursing home, based on my complaint. If you have had a similar situation, I would appreciate any information.