How To Demand One To Quit?

Can we suddenly ask one to quit A place one is doing one's business In the premises belonging to you ever? When we are getting regular income As rent since a long time sans fail...., How can we make one leave the place? We can ask one to leave the place only When we are in need of it for our own Use for doing some business by us....! We can give time to leave the premises And then only we can demand for our Purpose to do what we like later on...! Maintaining good relationship and at the Same time using it for our use is wise....!