Attorneys often take malpractice cases on a contingency fee arrangement, which means their fees
http://www.americanbar.org/groups/public_education/resources/law_issues_for_consumers/lawyerfees_contingent.html
are contingent upon successfully winning the case or obtaining a favorable settlement for their client. In this type of arrangement, attorneys agree to represent clients in malpractice cases without charging any upfront fees or hourly rates. Instead, they receive a percentage of the compensation awarded to the client if the case is successful.
To get more detailed information about the specific fees and arrangements in malpractice cases, it's best to consult with an attorney directly. They can explain how their contingency fee structure works, including the percentage they charge if they win the case, any additional costs or expenses that may be involved, and how the fees are calculated. It's important to have a thorough understanding of the agreement before hiring an attorney to handle a malpractice case on a contingency fee basis.