Any person who takes part in the procurement, initiation, continuation, or defense of civil proceedings must be considered to have acted to secure a proper purpose as stated in item (1) of Section 15-36-10 if he reasonably believes in the existence of the facts upon which his claim is based and

1. (1) reasonably believes that under those facts his claim may be valid under the existing or developing law; or
2. (2) relies upon the advice of counsel, sought in good faith and given after full disclosure of all facts within his knowledge and information which may be relevant to the cause of action; or
3. (3) believes, as an attorney of record, in good faith that his procurement, initiation, continuation, or defense of a civil cause is not intended to merely harass or injure the other party.