Tenants failure to demand a contract by the use of the property, the lease to terminate because of a legitimate interest in the termination of the lease in time to terminate the lease for cause because of late payments or for other breaches of duty without notice, to name a few. The higher court jurisprudence, particularly the Federal Court and the Constitutional Court decide in favor of the landlord and always reject the landlord in the exercise of his legal rights overly restrictive rulings of the lower instance courts and strengthen the constitutionally protected right positions of the landlord. For the landlord, this is not often an uphill battle through the courts. In Wohnraummietsachen there is a two-stage of appeal from the district court as an input to the District Court as a court appeal. The appellate court must authorize the revision to his decision if the case is of fundamental importance or the securing of a single law, a Decision of the Federal Court requires.

In particularly serious procedural errors with intrusion into constitutionally protected legal positions of the landlord sometimes only the Constitutional Court is the Constitutional Court. Not every landlord dares not until the Federal Constitutional Court, especially since this court nor any constitutional grounds for decision claims. For asserting its legitimate rights and claims against the often supported by tenant associations and consumer organizations tenant needs of landlords targeted and effective legal support through appropriate interest groups and by specializing in landlord law lawyers, playing the appropriate court and judicial successes for which they advised and represented landlord can. In addition, each owner should take out legal expenses insurance.