Section 2627 Of Article 3. Accounts From California Probate Code >> Division 4. >> Part 4. >> Chapter 7. >> Article 3.

. (a) After a ward has reached majority, the ward may settle accounts with the guardian and give the guardian a release which is valid if obtained fairly and without undue influence.
  (b) Except as otherwise provided by this code, a guardian is not entitled to a discharge until one year after the ward has attained majority.