2023 New York Laws › CVP - Civil Practice Law and Rules › Article 3 - Jurisdiction and Service, Appearance and Choice of Court › 321 - Attorneys.

§  321.  Attorneys.  (a) Appearance in person or by attorney. A party,
other than one specified in section 1201 of this chapter, may  prosecute
or  defend  a  civil  action  in  person  or  by attorney, except that a
corporation or voluntary association shall appear by attorney, except as
otherwise provided in sections 1809 and 1809-A  of  the  New  York  city
civil  court act, sections 1809 and 1809-A of the uniform district court
act and sections 1809 and 1809-A of the  uniform  city  court  act,  and
except  as  otherwise  provided  in  section 501 and section 1809 of the
uniform justice court act. If a party appears by attorney such party may
not act in person in the action except by consent of the court.
(b) Change or withdrawal of attorney. 1. Unless the party is a  person
specified  in  section  1201,  an  attorney  of record may be changed by
filing with the clerk a consent to the change  signed  by  the  retiring
attorney and signed and acknowledged by the party. Notice of such change
of  attorney  shall  be  given  to  the attorneys for all parties in the
action or, if a party appears without an attorney, to the party.
2. An attorney of record may withdraw or be changed by  order  of  the
court  in which the action is pending, upon motion on such notice to the
client of the withdrawing  attorney,  to  the  attorneys  of  all  other
parties in the action or, if a party appears without an attorney, to the
party, and to any other person, as the court may direct.
(c)  Death,  removal  or  disability of attorney. If an attorney dies,
becomes physically or mentally incapacitated, or is  removed,  suspended
or  otherwise  becomes  disabled at any time before judgment, no further
proceeding shall be taken in the action against the party  for  whom  he
appeared,  without leave of the court, until thirty days after notice to
appoint  another  attorney  has  been  served  upon  that  party  either
personally or in such manner as the court directs.
(d) Limited scope appearance. 1. An attorney may appear on behalf of a
party  in a civil action or proceeding for limited purposes. Whenever an
attorney appears  for  limited  purposes,  a  notice  of  limited  scope
appearance shall be filed in addition to any self-represented appearance
that  the  party  may  have  already filed with the court. The notice of
limited scope appearance shall be signed by the  attorney  entering  the
limited  scope  appearance  and  shall define the purposes for which the
attorney is appearing. Upon such filing, and unless  otherwise  directed
by  the  court, the attorney shall be entitled to appear for the defined
purposes.
2.  Unless  otherwise  directed  by  the  court  upon  a  finding   of
extraordinary circumstances and for good cause shown, upon completion of
the   purposes  for  which  the  attorney  has  filed  a  limited  scope
appearance, the attorney shall file a notice of  completion  of  limited
scope  appearance  which shall constitute the attorney's withdrawal from
the action or proceeding.