Goodman is facing charges of killing her 80-year-old husband, Alan Goodman, at their Woodland Hills home in April.
Attorney Alison Triessl wrote in a court filing that Lois Goodman has had two knee replacements, a shoulder replacement and suffers from arthritis and spinal pain.
"It is physically impossible for her to have done this," Triessl told The Associated Press.
Goodman has a bail hearing scheduled for tomorrow. Triessl asked the judge to reduce Goodman's $1 million bail to $100,000 or release her on electronic monitoring.
"Mrs. Goodman is not a danger to any person or the community," Triessl wrote in the motion, adding that Goodman did not have a passport.
Prosecutors accuse Lois Goodman of using a coffee cup that broke to stab her husband multiple times. She was arrested last week in New York, where she was to serve as a line judge for this week's U.S. Open.
The Associated Press contributed to this report.