Each of the above sections of the Business & Professions Code also requires the lawyer to give the client a complete copy of the retention agreement. If this is not the case, the customer has the possibility to invalidate the contract. The requirements applicable to contingency fee agreements are set out in Article 6147 of the Business & Professions Code, which states in the relevant section that any fee agreements in Section 6147 deal with possible fee agreements. A possible fee agreement should be written and contain: for example, an experienced lawyer may order $400 per hour. In the hybrid, however, he can calculate a reduced rate of $150 per hour and accept a 20 percent eventuality on the sum of the outcome of the case. The biggest advantage of a potential fee agreement is that you don`t have to pay cash to a lawyer to take over your case, as long as that lawyer accepts it on a possible fee basis. (a) A lawyer in charge of a contract to represent a client on the basis of a success fee must provide the client`s applicant, guardian or representative, at the time of entering into the contract, with a copy of the contract signed by both the client`s lawyer, client, guardian or representative. The contract must be in writing and includes, among other things: (5) If the claim is subject to the provisions of section 6146, a statement that the rates set out in this section are the limits of the success fee agreement and that the attorney and client may negotiate a lower rate. Courts do not impose royalty-sharing agreements that do not comply with rules 2-200. .