Attorney's fees (or attorneys' fees, depending upon number of attorneys involved, or simplified to attorney fees) are the fees, including labor charges and costs, charged by lawyers or their firms for legal services provided by them to their clients.
The plural possessive attorneys' fees is just as good, and some may even prefer that term in contexts in which there is clearly more than one attorney referred to. Attorney fees is inelegant but increasingly common. It might be considered a means to avoid having to get the apostrophe right.
The average contingency rate falls between 20-40%, with most lawyers charging around 33% to 35% of the total amount recovered in a case. The exact percentage can vary depending on the complexity of the case, the lawyer's experience, and the stage at which the case is resolved.
It provides: “Use the singular possessive case 'attorney's fees' (not 'attorneys'') in the term 'attorney's fees,' even though in the particular case more than one attorney may be involved.” OFF. OF THE REP. OF DECISIONS, THE SUPREME COURT'S STYLE GUIDE § 10.3 (Jack Metzler ed., 2016).