The best landlords follow three simple rules.
First, Carefully screen your residents and always keep your cool. When a resident feels disrespected they may not respect your property.
Second, Keep the property maintained. If it needs to be fixed or painted just do it as soon as possible. Keep your word on what and when something is to be done,
Third, Keep everything on a business level. Use e-mail and text to keep things in writing. Be sure your resident understands their and your responsibilities upfront.
Freebie: Always be sure the front of the home including the front windows, door and walkway are attractive to attract the best pool of potential residents.