He was a member of the New York State Assembly (New York Co., 22nd D.) in 1921 and 1922. In 1921, the Citizens Union endorsed Reiburn for re-election, saying that he was "a member of promise and capacity with good record of votes."[3]
In 1927, he was accused of larceny,[4] but the charges were dismissed.[5]
In 1935, Reiburn was disbarred by the New York Supreme Court, Appellate Division for unethical practices.[6] He was found guilty of "the conversion of money obtained from others by false representations of large profits to be made from the purchase of real property about to be acquired for public purposes."[7]
In December 1937, he and three others were indicted by a federal grand jury for using the mails to swindle three widows out of about $10,000.[8] A few days later, he was convicted of theft,[9] and was sentenced by Judge Allen of the New York City Court of General Sessions to a term of eighteen months to three years in Sing Sing state prison.[10]