Section 99. Municipal services

In connection with projects located within
  its  respective  territorial  boundaries,  a  municipality,   a   school
  district,  a  fire  alarm  district,  a fire district, a fire protection
  district, or an improvement district  may,  upon  such  terms,  with  or
  without   consideration,   as   the   local  legislative  body  of  such
  municipality or the governing body of such district may deem  advisable,
  render  or  contract to render services to an authority, housing company
  or a government, or provide  and  maintain  parks,  sewerage,  or  other
  facilities  adjacent  to or in connection with a project. A municipality
  or a district hereinabove described  may  also  render  or  contract  to
  render  such  services and to provide such facilities in connection with
  projects located outside its respective territorial boundaries upon such
  terms and consideration as shall, in  the  determination  of  the  local
  legislative  body  of  such  municipality  or the governing body of such
  district, which  determination  shall  be  conclusive,  compensate  such
  municipality  or  district  for the cost of furnishing such services and
  facilities.  A  municipality  may  enter  into  an  agreement  with   an
  authority,  housing company or a government, upon such terms as it shall
  determine, with or without compensation, to open, pave,  install,  close
  or  change  the grade of streets, roads, roadways, alleys, sidewalks, or
  other places, to change the municipal map,  to  plan,  replan,  zone  or
  rezone  any section of the municipality. In connection with the exercise
  of this power a municipality may,  if  it  deems  advisable,  incur  the
  entire  expense  of  any  such  public  improvements  located within its
  territorial boundaries  without  assessment  against  abutting  property
  owners,  or  contract with an authority upon such terms, with or without
  consideration, as it may deem advisable, with respect to the exercise by
  the municipality or government of its powers  relating  to  the  repair,
  closing  or  demolition  of  unsafe, insanitary, or unfit dwellings, and
  with respect to aid and cooperation by the municipality or government in
  the planning, undertaking, construction or operation of projects.