An affidavit is a written, sworn statement by an individual witnessed and signed by a Notary Public or other official person. The 'affiant' swears to the truth of the written statement. This form, a sample Family Law Financial Affidavit (Short Form) - Official, can be used as an affidavit on the named topic. Adapt the model language to fit your own circumstances and sign in the presence of a Notary.