Studied law in Marburg and Frankfurt am Main. Admitted to the bar in 1983, appointed notary in 1996. In-house lawyer for Bundesfachverband Wohnungs- und Immobilienverwalter e.V. (Landesverband Hessen) 1999 - 2003. Successfully completed specialist lawyer courses in tax law and tenancy and residential property law. Lecturer for the Frankfurt Bar Association as part of legal training and several years as a member of the examination board for the notarial examination at the Federal Chamber of Notaries.

Hans-Otto Döll works mainly as a notary. He drafts and certifies contracts in all notarial matters, including property and real estate law, extensive inheritance law arrangements and company succession.

Mr. Döll is an honorary member of the board of Haus & Grund Darmstadt e.V. and Haus & Grund Hessen e:V. He is a member of Anwaltverein Darmstadt und Südhessen e.V. and its working groups on tenancy law and lawyers’ notaries, of Deutsche Notarrechtliche Vereinigung e.V., of Haus & Grund Darmstadt e.V. and of Rotary Club Dieburg-Babenhausen.