The handover of a property for a given period of time in exchange for rental income. Laws governing lettings are laid down in the Swiss Federal Code of Obligations (Schweizerisches Obligationenrecht - "OR" - Art. 253 ff. OR) and in the ordinance regulating the letting and leasing of residential and commercial space (Verordnung über die Miete und Pacht von Wohn- und Geschäftsräumen - "VMWG").