Ejection process in Alabama

[Carmanetta Spearman]

We recently bought a foreclosed home at an auction through Sirote knowing that the previous owners were still living there.  An investor friend explained to us that it's better to speak with the previous homeowners (peacefully) after having the deed recorded and notify them that we bought the house and that we are giving them a period of time to vacate the property and offering them a cash for keys agreement as well as having them sign a quit claim deed. Has anyone else purchased a property still occupied? Is it necessary to speak to them directly? What if no one answers the door? Would having a certified letter explaining everything suffice? What are the proper steps in the ejection process?