(a) Every pleading containing an averment of fact not appearing of record in the action or containing a denial of fact shall state that the averment or denial is true upon the signer’s personal knowledge or information and belief and shall be verified. The signer need not aver the source of the information or expectation of ability to prove the averment or denial at the trial. A pleading may be verified upon personal knowledge as to a part and upon information and belief as to the remainder.(b) If a pleading contains averments which are inconsistent in fact, the verification shall state that the signer has been unable after reasonable investigation to ascertain which of the inconsistent averments, specifying them, are true but that the signer has knowledge or information sufficient to form a belief that one of them is true.(c) The verification shall be made by one or more of the parties filing the pleading unless all the parties (1) lack sufficient knowledge or information, or (2) are outside the jurisdiction of the court and the verification of none of them can be obtained within the time allowed for filing the pleading. In such cases, the verification may be made by any person having sufficient knowledge or information and belief and shall set forth the source of the person’s information as to matters not stated upon his or her own knowledge and the reason why the verification is not made by a party.
