2006 New York Code - Estoppel From Contesting Validity Thereof

 
    §  84.00  Effect  of  recital  of  validity  in  obligations.   If the
  obligations issued pursuant to a resolution or certificate published  in
  the manner provided in this title contain a recital in substantially the
  form  prescribed  in  section  52.00 of this chapter, such recital shall
  bind the municipality, school district or district  corporation  issuing
  such  obligations,  and twenty days after such resolution or certificate
  shall have been published and after such obligations have been purchased
  in good faith and for fair value by any person,  the  validity  of  such
  obligations  shall  not  be  questioned  by  such  municipality,  school
  district or district corporation or any taxpayer thereof in any court.