Trying to Follow DB & DR

[Sotto]

I thin changing locks should be an absolute last resort and only considered when you have real concerns about your property. And all other reasonable efforts to set a boundary with your S have failed. And when the law is on your side too.

Changing the locks is a huge 'I've lost trust in you' statement and could be a huge barrier to possible future reconciliation.

I'm saying all of this, having not fully read your sitch...so forgive any misunderstandings - but I feel quite strongly about the whole 'locks' thing.