2022 New York Laws
PTR - Partnership
Article 3 - Relations of Partners to Persons Dealing With the Partnership.
27 - Partner by Estoppel.

§  27.  Partner  by  estoppel.    1. When a person, by words spoken or
written or by  conduct,  represents  himself,  or  consents  to  another
representing  him to any one, as a partner in an existing partnership or
with one or more persons not actual partners, he is liable to  any  such
person  to whom such representation has been made, who has, on the faith
of  such  representation,  given  credit  to  the  actual  or   apparent
partnership,  and if he has made such representation or consented to its
being made in a public manner he is liable to such person,  whether  the
representation  has  or has not been made or communicated to such person
so giving credit by or with the knowledge of the apparent partner making
the representation or consenting to its being made.
  (a) When a partnership liability results, he is liable  as  though  he
were an actual member of the partnership.
  (b)  When  no partnership liability results, he is liable jointly with
the  other  persons,  if  any,  so  consenting  to   the   contract   or
representation as to incur liability, otherwise separately.
  2.  When  a  person  has  been  thus represented to be a partner in an
existing partnership, or with one or more persons not  actual  partners,
he  is an agent of the persons consenting to such representation to bind
them to the same extent and in the same  manner  as  though  he  were  a
partner   in   fact,   with   respect  to  persons  who  rely  upon  the
representation. Where  all  the  members  of  the  existing  partnership
consent  to the representation, a partnership act or obligation results;
but in all other cases it is the joint act or obligation of  the  person
acting and the persons consenting to the representation.