Claudia Ostarek

Claudia Ostarek brings over 15 years of independent practice to Koch, Schatz & Kollegen. After positions at DAS Legal Protection Insurance, two Frankfurt law firms, and her own practice in Bad Vilbel (2009–2024), she joined the firm in 2025. As a certified specialist in social law (since 2012) and insurance law (since 2017), she handles disputes with insurers, health funds, and social security authorities across the full spectrum. Long-term work with a Frankfurt tenant organisation also gave her deep expertise in tenancy and condominium law.

Notable Roles

Areas of Practice

• Sozialrecht (Fachanwältin)
• Versicherungsrecht (Fachanwältin)
• Berufsunfähigkeitsrente
• Kranken- und Pflegeversicherungsstreitigkeiten
• Schwerbehindertenrecht
• Rentenrecht
• Miet- und WEG-Recht
• Arbeitsrecht
• Allgemeines Zivilrecht

Education & Career

1. Law degree at Justus-Liebig-University Gießen
2. Legal traineeship in the Frankfurt am Main district; international placement at Blake Dawson Waldron, Sydney (Australia)
3. Position at DAS Legal Protection Insurance (now ERGO), Frankfurt am Main
4. Associate at two Frankfurt law firms
5. Long-term work with a Frankfurt tenant protection organisation — deepening expertise in tenancy and condominium law
6. 2009Founded own practice in Bad Vilbel
7. 2012Certified specialist in social law
8. 2017Certified specialist in insurance law
9. Since 2025Lawyer at Koch, Schatz & Kollegen, Offenbach am Main