Louis Herbert Hahlo (January 17, 1865 – May 25, 1932) was an American lawyer and politician from New York.
He was admitted to the bar later that year and practiced commercial law in New York City.
While in the Assembly, he submitted bills that prevented debtors from giving preferences in judgement, provided for the recording of certificates showing mortgage payments, concerned the pavement of New York City streets, amended the Code of Civil Procedures for appeals, authorized the Commissioners of the Sinking Fund of New York to cancel certain assessments,[4] and allowed the substitution of other fireproof material in buildings than stone, brick, or terra-cotta.
[5] He also served on the judiciary committee to investigate charges against New York Court of Appeals Justice Isaac H.
He resigned from the position in 1920, allegedly due to differences with Comptroller Charles L. Craig.