(i) Notice and challenges.—
- (1) The authority may cause a copy of any resolution authorizing the issuance of bonds adopted by it to be filed for public inspection in its office and in the office of the clerk of the governing body of each county and the governing body of the city of the first class within its service area and may thereupon cause to be published in a newspaper published or circulating in its service area a notice stating the fact and date of the adoption, the places where the resolution has been so filed for public inspection, the date of publication of the notice and that any action or proceeding of any kind or nature in any court questioning the validity or proper authorization of bonds provided for by the resolution, or the validity of any covenants, agreements or contract provided for by such resolution, shall be commenced within 20 days after the publication of the notice.
- (2) If any notice shall at any time be published and if no action or proceeding questioning the validity or proper authorization of bonds provided for by the resolution or the validity of any covenants, agreements or contract provided for by such resolution shall be commenced within 20 days after the publication of the notice, then all residents, taxpayers and owners of property in the service area and users of the transportation system of the authority and all other persons whatsoever shall be forever barred and foreclosed from instituting or commencing any action or proceeding in any court or pleading any defense to any action or proceedings questioning the validity or proper authorization of such bonds or the validity of any such covenants, agreements or contracts, and said bonds, covenants, agreements and contracts shall be conclusively deemed to be valid and binding obligations in accordance with their terms and tenor.
- (3) After issuance of bonds, all bonds shall be conclusively presumed to be fully authorized and issued by all the laws of this Commonwealth, and any person shall be estopped from questioning their sale, execution or delivery by the authority.