No marriage license shall be necessary when a man and a woman who have attained the age of majority and who, being unmarried, have lived together as husband and wife for at least five years, desire to marry each other. The contracting parties shall state the foregoing facts in an affidavit before any person authorized by law to administer oaths. The official, priest or minister who solemnized the marriage shall also state in an affidavit that he took steps to ascertain the ages and other qualifications of the contracting parties and that he found no legal impediment to the marriage. (n)