I am writing out all the damages to the property and my contractor is going to give me a receipt... the damages will contain the locksmith cost for changing the locks because they did not give me the keys and they broke a key in the back door lock... the waste removal, the repainting of one room that was painted black and one wall in the dinning room I have to paint because they painted it orange...

If the lock has been changed without proper notice and you have not given management a duplicate key, a locksmith will be called upon to open the door and rekey the locks.

I see your concern and actually never thought about a Tennant changing the key, if they did you'd just have to call a locksmith but my guess is there would be bigger problems to deal with if the tenant is locking you out!

I have used A1 locksmith most recently.

I actually just did this recently and bought some cheap ($1000) houses, then had a locksmith open the doors and re-key the locks....I paid him using a debit card from my business checking account (credit cards are not allowed). 

No need for contractors or locksmiths so you can do it immeidately yourself. 

Locksmith forced it open and replaced the lock, but in LA there is no requirement for locksmiths to check for legal right to occupancy before replacing a lock.

Unfortunately, we spoke to a locksmith back when we started, and electronic locks will not work on this patio door. 

., they can pay for a locksmith to open their door).Gail

So make sure you have new door locks or bring a handyman/locksmith who can change it out for you.If stuff is left in the property, you have to sit on it for 30 days or put it into storage.