2006 New York Code - Purposes Of Formation.

 
    §  1206.  Purposes  of  formation.  No  professional  service  limited
  liability company shall engage in any profession  or  professions  other
  than  those  set  forth  in its articles of organization. A professional
  service limited liability company may only engage  in  a  profession  or
  professions  as to which one or more of its members is authorized by law
  to render professional services in this state. In addition  to  engaging
  in  such  profession  or  professions,  a  professional  service limited
  liability company may  carry  on,  or  conduct  or  transact  any  other
  business or other activities as to which a limited liability company may
  be formed under section two hundred one of this chapter. Notwithstanding
  any  other provision of this section, and subject to the next succeeding
  sentence of this  section,  a  professional  service  limited  liability
  company  (i)  authorized  to  practice  law  may  only engage in another
  profession or other business or activities or (ii) which is engaged in a
  profession or other business or  activities  other  than  law  may  only
  engage in the practice of law, to the extent not prohibited by any other
  law  of  this  state  or  any  rule adopted by the appropriate appellate
  division of the supreme court or the court of appeals. Any  professional
  service  limited  liability company may invest its funds in real estate,
  mortgages, stocks, bonds or any other type of investments.