Trusts: How to Enforce Trust

My question involves estate proceedings in the state of: CA

So once an estate plan is finalized, with living trust, will, healthcare directive etc how is it enforced once the trustee dies? Does the successor trustee take the living trust documents somewhere that says, we need to sell the real properties (or whatever they wish to do with them)

For assets other than properties, it sounds like you just call the financial institution with proof of the living trust, to transfer the money out. But what about real estate?

Trusts: How to Enforce Trust