2006 New York Code - Grounds.

 
    §  1711.  Grounds. In any of the following cases, a special proceeding
  may be maintained to dispose of the real property or an interest in real
  property of an infant, incompetent person or conservatee.
    1. Where his personal property, together with the income of  the  real
  property  are  insufficient  for  the  payment  of  his debts or for the
  maintenance and necessary education of himself and his family.
    2. Where his interests require or will be  substantially  promoted  by
  disposition,  because  the real property or interest in real property is
  exposed  to  waste  or  dilapidation,  or  is  wholly  or  substantially
  unproductive,  or because funds are needed to preserve or to improve the
  same, or because of other peculiar reasons or circumstances.
    3. Where he is seized or possessed of the real property,  or  interest
  in real property, by way of mortgage, or only in trust for another.
    4.  Where  a  valid  contract  for  the sale or conveyance of the real
  property or interest in real property has been made,  but  a  conveyance
  thereof cannot be made because the person in whom the title is vested is
  an infant, an incompetent, or a conservatee.
    5.  Where  his interest will be substantially promoted by releasing or
  joining with others  in  releasing  for  a  valuable  consideration  the
  possibility of reverter.
    6.  Where  his interest will be substantially promoted by the exchange
  of a portion of his real  property  for  lands  adjacent  to  such  real
  property  if  such  exchange  would tend to improve the boundary line of
  such real property.