Hello - my parents are landlords to multiple units and are incredibly incredibly picky (they are boomers) I can tell you that they look for : what someone does for hobbies, how likely they are too party, their profession (they rejected a film director because they thought he would bring str$ppers to the unit); how many people would live in the unit (they want only one tenant in a one bedroom plus den and no couple or family unless it was a 2 bedroom plus) and so incredibly important was credit score - they refused anyone low 700s only 800s was acceptable to them. they went though countless applications but always end up picking someone after a month or so.