Aff.

Law & Legal abbreviation · Litigation

Aff.
Stands forAffidavit
CategoriesLaw & Legal

Aff. stands for Affidavit, a litigation abbreviation.

Written statement of facts sworn before a notary or other officer authorized to administer oaths, used to support motions and other filings. Briefs cite it by the affiant's name and paragraph, as in "Smith Aff. ¶ 4".

Example: According to the landlord's own records, Jones Aff. ¶ 6, the rent was paid in full through March.

Usage notes

An affidavit differs from a declaration, which is signed under penalty of perjury without a notary; 28 U.S.C. § 1746 allows declarations in place of affidavits in most federal matters. Affidavits supporting summary judgment must rest on personal knowledge. The person who signs is the affiant.

More litigation abbreviations

  • AAA – American Arbitration Association
  • ADR – Alternative dispute resolution
  • AEO – Attorneys' eyes only
  • AOS – Affidavit of service
  • Br. – Brief
  • CMC – Case management conference
  • COA – Cause of action
  • Compl. – Complaint
  • CPLR – Civil Practice Law and Rules
  • Decl. – Declaration
  • Def. – Defendant
  • Dep. – Deposition

See all 71 litigation abbreviations →

This entry is for general education and is not legal advice. Abbreviation use varies between institutions; always confirm in context.