For a Power of Attorney to be legally valid in Michigan, it must comply with Chapter 700 of the Michigan Compiled Laws. A financial POA must be dated, written, and signed by the principal. Additionally, the signing must occur in the presence of two witnesses who also sign the document. The witnesses must not be the designated attorney-in-fact. The requirements for a medical POA are outlined under Section 700.5506 of the Michigan Compiled Laws. These steps ensure the POA is recognized by state law and can be enacted by the appointed agent.