.- We used to buy locks at Home Depot and just swap handsets, but now use a locksmith for same cost.2) Get rid of handset locks (use passage knobs) and only use deadbolts.- Two locks on a door really don't provide any additional security.- Cheaper as only have to rekey/replace deadbolts.- Tenants can't lock keys in their home.3) Our locksmith created a Master Key system with 10 key option.- One master key opens every door- We go 3 levels under our master, so we can submaster 2-4 unit houses and apartment buildings- Don't need a costly and difficult to secure & track keybox.

Have the owner either bring a locksmith with him or have locks to change all exterior doors as soon as the guy is out. 

But if you do have that set of keys, you could save yourself a locksmith's fees in case if any emergency came up.  

If you aren't handy or don't want to do it, a plumber and an HVAC guy are your two emergency contacts that you really need, followed by a locksmith, pest control, electrician.

Also, go to a locksmith store and purchase the devices that can be installed on windows to lock them without needing to drill into the frame.

If the tenant will not grant access, your state certainly has laws on the books that provide the seller with the ability to post a notice in the door and come with law enforcement ad a locksmith to gain access.

It's about the keys to the home.We get the keys, call a locksmith to change the locks.

I need about 6 to 8 locks installed which is front and side doors.  Also need vinyl tile installed in a 1300 sq ft house in the 38127 area.

My lease has a $150 lock out fee which makes me more costly than calling a roommate or locksmith.

A locksmith or a door hardware supplier can help you out on this.