
Marta Kowalczyk Davidson
About Marta Kowalczyk Davidson
Marta Davidson is a hard-working attorney with a passion to achieve justice for those who have been harmed by medical negligence. As part of the medical malpractice trial team, Marta has achieved several multi-million dollar verdicts and settlements. For example, Marta second-chaired a trial in Winnebago County with partner Bradley Cosgrove involving the negligent placement of an Unna Boot on a 65-year-old man that resulted in an amputation of his left leg. The jury returned a record $3.157 million verdict for this type of injury in Winnebago County outside of Chicago. Marta tried another case alongside Bradley Cosgrove that involved a 68-year-old man who died two days after a knee replacement surgery. The jury returned a verdict of $8.25 million for the family. She was also part of the trial team that obtained a $4 million verdict on behalf of a family of a 51-year-old man who died following a carotid endarterectomy. Marta also has taken part in negotiations resulting in multi-million-dollar settlements, including a $10.7 million settlement on behalf on a woman who suffered permanent brain injury from a ruptured aortic aneurysm, a $5.4 million settlement on behalf of a family whose husband and father died as a result of failure to timely treat a bowel perforation, and a $3.75 million settlement in DeKalb County on behalf of the family of a 45-year-old man who died from a pulmonary embolus. She currently handles a wide variety of medical malpractice and personal injury matters in Cook and the collar counties. Prior to joining Clifford Law Offices, she worked at the Law Office of Kenneth C. Chessick, M.D. She graduated from the University of Illinois College of Law cum laude. While there, she served as Editor in Chief of the Business Law Journal and as the Productions Editor of the Journal of Law, Technology and Policy. She served as Executive Editor on the Moot Court Board and received recognition for excellence in several classes as well as in writing competitions. Every year since 2017, she has been recognized as a Rising Star by Illinois Super Lawyers. Marta is fluent in Polish and proficient in Spanish, having studied in Barcelona during her undergraduate work at the University of Illinois.
Notable case results
Negligent Unna Boot placement resulting in leg amputation (Winnebago County)
Death two days after knee replacement surgery
Death following a carotid endarterectomy
Permanent brain injury from ruptured aortic aneurysm
Death from failure to timely treat a bowel perforation
Death from a pulmonary embolus (DeKalb County)
Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.




