In the case of renting a finished house, the request for subletting or assignment must be included in the mandatory form “Request for Consent to Assign a Manufactured Home Tenancy Agreement”. The landlord must have a good reason to refuse a tenant`s request for a sublease or order. However, the lessor has the right to authorize the assignment or sublease, but may not refuse it without valid reason. Save as otherwise provided for in Paragraph 14(3) of the Wohnbaugdgesetz Law, the terms of a rental agreement may be amended only by mutual agreement. If you and your landlord both agree to a change, you can change your existing agreement. For example, you can paint a term, type a new one, add the date, and initialize the change. .