534.030. Unlawful detainer defined — foreclosure, notice to tenants, procedure. — 1. When any person willfully and without force holds over any lands, tenements or other possessions, after the termination of the time for which they were demised or let to the person, or the person under whom such person claims; or after a mortgage or deed of trust has been foreclosed and the person has received written notice of a foreclosure; or at least ten business days have elapsed after the date of the notice described in subsection 3 of this section; or when premises are occupied incident to the terms of employment and the employee holds over after the termination of such employment; or when any person wrongfully and without force, by disseisin, shall obtain and continue in possession of any lands, tenements or other possessions, and after demand made, in writing, for the delivery of such possession of the premises by the person having the legal right to such possession, or the person's agent or attorney, shall refuse or neglect to vacate such possession, such person is guilty of an "unlawful detainer".