He moved to Minneapolis in May 1882 and formed a partnership with Charles H. Woods, which continued until 1886, when Han was elected trust officer of the Minnesota Loan and Trust Company, which he held since his death.
He moved to Minneapolis in May 1882 and formed a partnership with Charles H. Woods. The law firm partnership known as Woods & Hahn (now Gray Plant Mooty) continued until 1886 when Hahn was elected trust officer of the Minnesota Loan and Trust Company, which he held since his death.