All 11 bedrooms have their own bathroom, every bedroom door has an electronic lock.

Change locks I am being told $475.00 for all this listed is TOO MUCH.Am I wrong about this?

Just locking up and checking on things. 

I don't have funds for the roof, or to replace the outside supporting wall frame and stucco.However the bank has changed the locks on me multiple times to "protect their asset", which got me wondering, would they also put a new roof on it and repair the rot to protect their asset?

I have worked in residential real estate for 20 years full-time I have done a good bit of commercial work as well and without having Cody and David on my team I never would've been able to lock down this deal.

In some places you can't put bedroom door locks on unless you are a boarding house, although I am not sure if any one checks that.Another thought is if you don't have central air there some boarding houses that have a monthly air conditioning charge if you put a window unit in. 

Is there a digital door lock whose code you can change remotely, without a monthly fee? 

This pack of gum (that I did not pay for) accidentally slipped into my pocket...This bottle that I did not scan just got mixed with the other bottles that I did scan...This receipt is not really for this pair of shoes, but I want to return it anyway...Sorry that I dropped $10 ear buds into this Amazon return for $200 ear buds, it got mixed up...Should I continue? 

The whole point of this was the 6% that was locked in by the seller that the buyer has to pay.  

Then, lock in someone you trust.