O.C.G.A. § 10-6B-5

(a) A power of attorney shall be: (1) Signed by the principal or by another individual in such principal’s presence at the principal’s express direction; (2) Attested in the presence of the principal by a competent witness who is not also named as an agent in the power of attorney being attested; and (3) Attested as set forth in Code Section 44-2-15, in the presence of the principal, by an individual who is not a witness for purposes of paragraph (2) of this subsection and who is not also named as an agent in the power of attorney being attested.

(b) The individuals provided for in paragraphs (2) and (3) of subsection (a) of this Code section shall not be required to attest to the signature of any person other than the principal or the individual signing at the principal’s express direction.