That may compress the sell cap rate some.Sometimes rents are below market and brokers tout as value add when buying but if the tenant never leaves the value is never unlocked so then you are buying on straight yield only.

As far as things to watch out for, I would watch out for an unlocked rate if you start the loan process, I would recommend getting locked in as quickly as possible as rates are generally trending in the wrong direction (upward) right now. 

Was the door left standing open, unlocked, or properly secured?

Trying to buy a property for BRRRR with the average Realtor is a lost cause, unless you do not need for them to do much more than unlock the doors for showings.

The door unlocking feature is interesting, and it's cool where they can allow people in even if they are not home.

Ususally you use bedroom/bathroom "privacy" twist locks for bedroom and bathroom doors; these interior locks have a hole on the outside that you can stick in a bobby pin to unlock.

The management company left the unit unlocked and was not even sure the tenant had left until 3 days later.

Tenant is asking for a key pad type so her kids can unlock easily.

Right now that basement door is unlocked and I have some concern about visitors accidently goes that way.

Hey, this weekend I'd like to do an initial inspection, please let me know what time Saturday I can enter and which entry will be left unlocked, also please send me in writing what you stated in person.