§1. Both the procurator and the advocate are forbidden to resolve the litigation by bribery or to make an agreement for an excessive profit or for a share in the object in dispute. If they do so, the agreement is null, and the judge can fine them. Moreover, the bishop who presides over the tribunal can suspend the advocate from office and even remove him or her from the list of advocates if it happens again.
§2. Advocates and procurators can be punished in the same way if in deceit of the law they withdraw cases from competent tribunals so that the cases will be decided more favorably by other tribunals.
Source: Code of Canon Law (Vatican.va)