Excelsior, Minn., Code of Ordinances ch. 8, art. IV § 8-161

(a) Placarding. Any rental dwelling or rental dwelling unit that has been condemned shall be posted with a placard of condemnation by the building official or designee or other governmental official with jurisdiction. The placard of condemnation shall include the following:
(1) Name of the city.
(2) The name of the authorized department having jurisdiction.
(3) The section of this Code of Ordinances or other ordinance, law, or regulation under which it is issued.
(4) Street address of the building and dwelling number, if applicable.
(5) A brief statement of the reasons for condemnation.
(6) A statement of the date and time by which occupants must vacate the rental dwelling or rental dwelling unit (not less than 24 hours or more than 30 days, except in cases of emergency).
(7) The date that the placard of condemnation is posted.
(8) A statement of the penalty for defacing or removing the placard.
(b) Notice of condemnation required. Whenever the building official or designee or other governmental official with jurisdiction intends to condemn a rental dwelling or rental dwelling unit, notice shall be given to the owner of such planned condemnation and placarding of the rental dwelling or rental dwelling unit shall occur. Such notice shall:
(1) Be in writing.
(2) Include the street address of the building and dwelling number, if applicable.
(3) Include a detailed statement of the reasons for condemnation.
(4) Set a date by which the owner must correct the conditions cited in the notice and bring the rental dwelling or rental dwelling units into compliance with this article or other provisions of city ordinances or state law, and notify the owner that after such date the building, rental dwelling or rental dwelling unit will be condemned.
(c) Service of notice of condemnation. Service of notice of condemnation shall be as follows:
(1) By delivery to the owner personally, or by leaving the notice at the usual place of abode of the owner with a person of suitable age and discretion;
(2) By sending the notice by registered mail addressed to the owner at the owner's last known address with postage prepaid thereon; or
(3) If the methods set forth in subsections (c)(1) and (c)(2) of this section have been unsuccessful, by posting and keeping posted for 24 hours a copy of such notice in placard form in a conspicuous place on the premises to be condemned.
(d) Duty to vacate. Any rental dwelling or rental dwelling unit that is placarded as unfit for human habitation by the building official or designee or other governmental official with jurisdiction shall be vacated within a reasonable time as required by such officials, and it shall be unlawful for any owner or operator to let or allow any person to occupy such rental dwelling or rental dwelling unit. No person shall occupy any rental dwelling or rental dwelling unit which has been condemned and placarded by any of such officials after the date set forth in the placard of condemnation. Such officials may allow a security or fire guard to occupy the condemned rental dwelling or rental dwelling unit when, in the opinion of such official, such action best serves public interest.
(e) Condemned rental dwellings or rental dwelling units not to be occupied. No rental dwelling or rental dwelling unit which has been condemned and placarded as unfit for human habitation shall again be used for human habitation until written approval is secured from the building official or designee or other governmental official with jurisdiction.
(f) Defacing, removal of placard. No person shall deface or remove the placard from any rental dwelling or rental dwelling unit which has been condemned and placarded. Such placard shall only be removed by the enforcing officer.
(g) Repeat offenders; certificate of code compliance. When any owner of any rental dwelling or rental dwelling unit has violated the provisions of sections 8-156 -- 8-161 on three or more separate occasions as to that dwelling within any one-year period, the owner shall be required to seek and be issued a certificate of code compliance.