Okla. Stat. tit. 30, § 30-1-123: Letters of guardianship

Letters of guardianship are evidence of the transfer of the

management or administration of all assets, or the part thereof

specified in the letters, of a ward to the guardian. An order

terminating a guardianship is evidence of transfer of the management

or administration of all assets subject to the guardianship from the

guardian to the ward, or to successors of the ward.