My sister took the Canada PR through SINP being nominated by my cousin. She stayed there for 2 months but after that she moved out of Canada as she was no further interested in staying in Canada. So will it affect my Cousin's profile to nominate future candidates?
You will have to ask your cousin if he still has the sponsorship papers he signed for her. As I linked to before, the current form has this clause: "
5. I declare that I clearly understand that applicant(s) to the Saskatchewan Immigrant Nominee Program (named below) must make a formal declaration of their intention to live and work in Saskatchewan, and that I will be prohibited from supporting other Family Members in the future, if the applicant named on this affidavit does not settle successfully and permanently in Saskatchewan."
If this clause was in the form he signed when he sponsored your sister and she did not settle in SK, then he is barred from sponsoring other relatives. If the clause was not in the forms at that time but was added to the forms between then and now, then he can still sponsor you.