landlord inspections: how often?

[Jeremy H.]

I was wondering how often landlord inspect the rental property.  In the lease I had written down every 3 months just to cover things, since I can't write down every 6 and go more frequent than it says.

I could tell the tenant does not feel comfortable with me looking in their living quarters.   I would not want anyone to disturb me either.   I just wanted to check the plumbing, and nothing strange is being stored inside.   

So I was just wondering how often landlords are holding their inspections and do you prolong it sometimes.  I don't think rental apartments or property management company bother with inspection until the year is up, is this true?