How should I get a copy of a key?

[Nick M.]

Hi guys,

I own a quad in a C type area.  I need to get a city inspection done on the property this Tuesday.  I have keys for 3 of the 4 apartments that I need to open for the inspection.  I just remembered I'm missing a key for 1 of the units after already emailing tenants yesterday saying that I will be entering their apartment with or without them present (hence suggesting I have keys).

So my issue here is, if I were to ask the tent for a copy of a key I expose my weakness as a Landlord - not having a key.  The tenant who occupies the apartment is generally of good temperament.  Any suggests on how to ask for a copy or otherwise get a copy?

Thanks