All certificates for capital stock shall be signed by the president and secretary of the company, and sealed with the corporate seal. Each stockholder shall be entitled to cast 1 vote for each and every share he shall own of the capital stock of such company, at any and all meetings of stockholders of said corporation for whatsoever purpose the same may be held, and may vote or perform any act by his or her attorney or proxy duly authorized in writing for that purpose at any meeting at which such stockholder may vote or act if present in person, which power of attorney or proxy shall be filed with the secretary of said company.
MCL 455.5