In General Affidavit in Support Submission to the Judge Opposition Papers CrossMotions Reply Papers Appearing in Court In General Notice of Motion Affidavit in Support Serving the Motion Affidavit of Service Filing the Motion With the Court Opposition PapersLearn the meaning and importance of affidavits in legal matters. See Montana Rule of Civil Procedure 5 for more information. Common types of Motions include. From courtrooms to everyday transitionsan affidavit is the most utilized legal document. Learn about its importance and implications. Ensure the notary adds their stamp and signature. An affidavit is a signed statement of fact made under oath. It is one of the main ways to present evidence to the court.