Not only does this avoid unnecessary headaches on the street, but it also gives landlords the certainty that they have done everything to ensure that the tenant is occupied by trusted tenants. In most cases, a standard lease has a term of 12 months. In some situations, for example.B. when the tenant has employment restrictions or other issues, the agreement can be concluded for a set period. The tenant must indicate the most appropriate period for his situation. If there is a directive on smoking, the agreement must mention it. If it is not indicated that the act is prohibited, the tenant has the right to smoke by default. In California, for example, it is necessary for each lease to mention what the directive is on the site. .