I called Desert Locksmith a month ago because the painters couldn't get into the duplex I just purchased, and I am an out-of-state investor.
Ran responded very quickly and resolved the issue with minimal instructions that I gave through the phone. I appreciate that he did not sales talk me to replace locks in both units, even though he can most likely tell that I'm not really sure which locks are broken.
The painters confirmed that the locks worked flawlessly after Ram fixed them. Also, I visited the duplex last week and saw that Ran organized the keys in the lockbox and labeled them. So, now there is no confusion of which keys belongs to which unit.