Keys to tenant space?

[Ash Patel]

I have what I am sure is a rookie question.  Do commercial landlords have keys and alarm codes to all of their tenant spaces?

In my case, I have keys/codes for the tenants that I signed, however, I do not have access for the tenants that I inherited.  There is no problem with me showing up during business hours and I'm sure if there was an issue, I can get a hold of the tenants after hours, but should I have keys/codes to their spaces?  

I have installed cameras for all of my tenants, so there should be no worry on their end about giving me a key.

Thank you all!!!!