The rent brake is controversial.
For a long time, the federal states had no regulations that could stand up to the courts.
But that has changed.
In the meantime they are so good that a tenant in Berlin was awarded a rent repayment of more than 12,000 euros and a reduction in her monthly rent through a BGH ruling.
Unclear definitions, but also the sovereignty of the states over the instrument, repeatedly lead to a dispute between tenants and landlords. WELT explains what both parties now absolutely need to know.