Section 2799-JJ. Agreement with the city

The city is authorized to pledge
  and  agree  with  the  holders  of  any  issue  of  bonds  and/or   bond
  anticipation notes secured by such a pledge that the city will not limit
  or  alter the rights hereby vested in the authority to fulfill the terms
  of any agreements made with such holders pursuant to this title,  or  in
  any  way  impair the rights and remedies of such holders or the security
  for such bonds and/or bond anticipation notes until  such  bonds  and/or
  bond  anticipation  notes,  together  with  the interest thereon and all
  costs and expenses in connection with any action or proceeding by or  on
  behalf  of  such  holders,  are  fully  paid  and  discharged.   Nothing
  contained in this section shall be deemed to restrict any right the city
  may have to amend, modify or otherwise  alter  local  laws  imposing  or
  relating  to  the  taxes  payable  to  the authority pursuant to section
  thirteen hundred thirteen of the tax law so long as, after giving effect
  to such amendment, modification or other alteration, the amount  of  tax
  revenues  projected by the mayor to be available to the authority during
  each of its fiscal years following the effective date of such amendment,
  modification or other alteration shall be  not  less  than  one  hundred
  fifty  percent  of  maximum  annual debt service on authority bonds then
  outstanding.