Section 1207. Membership of professional service limited liability companies

(a) A member of a  professional  service  limited  liability
  company shall be only:
    (1)   A  professional,  other  than  a  foreign  professional  service
  corporation, foreign professional service limited liability  company  or
  foreign  limited liability partnership, authorized by law to practice in
  this  state  a  profession  that  such  limited  liability  company   is
  authorized to practice and who is or has been engaged in the practice of
  such  profession  in  such  limited  liability  company or a predecessor
  entity, or who will engage in the practice of such  profession  in  such
  limited   liability   company  within  thirty  days  of  the  date  such
  professional becomes a member;
    (2)  A  professional,  other  than  a  foreign  professional   service
  corporation,  foreign  professional service limited liability company or
  foreign limited liability partnership, authorized by law to practice  in
  any  foreign  jurisdiction  a  profession  that  such  limited liability
  company is authorized to practice and who is or has been engaged in  the
  practice  of  such  profession  in  such  limited liability company or a
  predecessor  entity,  or  who  will  engage  in  the  practice  of  such
  profession  in  such limited liability company within thirty days of the
  date such professional becomes a member; or
    (3) A foreign professional service corporation,  foreign  professional
  service   limited   liability   company  or  foreign  limited  liability
  partnership authorized by law to  practice  in  this  state  or  in  any
  foreign jurisdiction a profession that such limited liability company is
  authorized to practice and who is or has been engaged in the practice of
  such  profession  in  such  limited  liability  company or a predecessor
  entity, or who will engage in the practice of such  profession  in  such
  limited   liability   company  within  thirty  days  of  the  date  such
  professional becomes a member.
    (b) With respect to a professional service limited  liability  company
  formed  to  provide  medical  services  as  such services are defined in
  article 131 of the education law, each member of such limited  liability
  company must be licensed pursuant to article 131 of the education law to
  practice  medicine in this state. With respect to a professional service
  limited liability company formed to  provide  dental  services  as  such
  services are defined in article 133 of the education law, each member of
  such  limited liability company must be licensed pursuant to article 133
  of the education law to practice dentistry in this state.  With  respect
  to  a  professional  service limited liability company formed to provide
  veterinary services as such services are defined in article 135  of  the
  education  law,  each  member  of such limited liability company must be
  licensed pursuant to article  135  of  the  education  law  to  practice
  veterinary  medicine  in  this  state.  With  respect  to a professional
  service  limited  liability  company  formed  to  provide   professional
  engineering,    land    surveying,    architectural   and/or   landscape
  architectural services as such services  are  defined  in  article  145,
  article  147  and  article 148 of the education law, each member of such
  limited liability company must be  licensed  pursuant  to  article  145,
  article  147  and/or article 148 of the education law to practice one or
  more of such professions in this state. With respect to  a  professional
  service  limited  liability  company formed to provide licensed clinical
  social work services as such services are defined in article 154 of  the
  education  law,  each  member of such limited liability company shall be
  licensed pursuant to article  154  of  the  education  law  to  practice
  licensed  clinical  social  work  in  this  state.  With  respect  to  a
  professional  service  limited  liability  company  formed  to   provide
  creative  arts  therapy services as such services are defined in article

  163 of the education law, each member of such limited liability  company
  must  be  licensed  pursuant  to  article  163  of  the education law to
  practice creative  arts  therapy  in  this  state.  With  respect  to  a
  professional   service  limited  liability  company  formed  to  provide
  marriage and family therapy services as such  services  are  defined  in
  article  163 of the education law, each member of such limited liability
  company must be licensed pursuant to article 163 of the education law to
  practice marriage and family therapy in this state. With  respect  to  a
  professional  service limited liability company formed to provide mental
  health counseling services as such services are defined in  article  163
  of the education law, each member of such limited liability company must
  be  licensed  pursuant  to  article 163 of the education law to practice
  mental health counseling in this state. With respect to  a  professional
  service  limited  liability  company  formed  to  provide psychoanalysis
  services as such services are defined in article 163  of  the  education
  law,  each  member  of  such  limited liability company must be licensed
  pursuant to article 163 of the education law to practice  psychoanalysis
  in this state.
    (c)  No  member  of  a  professional service limited liability company
  shall enter into a voting trust agreement, proxy or any  other  type  of
  agreement  vesting  in another person, other than another member of such
  limited liability company or  professional  who  would  be  eligible  to
  become  a  member  of  such  limited liability company, the authority to
  exercise voting power of any or all of the membership interests of  such
  limited  liability  company. All membership interests or proxies granted
  or agreements made in violation of this section shall be void.