Rule 1.04 — Fees
A lawyer shall not enter into an arrangement for, charge, or collect an illegal fee or unconscionable fee. A fee is unconscionable if a competent lawyer could not form a reasonable belief that the fee is reasonable.
Factors that may be considered in determining the reasonableness of a fee include, not to the exclusion of other relevant factors, the following:
(1) the time and labor required, the novelty and difficulty of the questions involved, and the skill requisite to perform the legal service properly;
(2) the likelihood, if apparent to the client, that the acceptance of the particular employment will preclude other employment by the lawyer;
(3) the fee customarily charged in the locality for similar legal services;
(4) the amount involved and the results obtained;
(5) the time limitations imposed by the client or by the circumstances;
(6) the nature and length of the professional relationship with the client;
(7) the experience, reputation, and ability of the lawyer performing the services; and
(8) whether the fee is fixed or contingent on results obtained or uncertainty of collection before the legal services have been rendered.
Texas Disciplinary Rules of Professional Conduct, Client-lawyer Relationship — Rule 1.04 Fees