is there a way to lock everything so settings won't get changed between rendering sessions? Say you are rendering in images so you can pick up where you left off, if need be, is there a way to lock down everything that needs to be locked, like camera position so when you start again the frames settings will not be off when putting it all together into a move when finished, it will be as if one never stopped rendering until the finished product.

I've looked for locking but have not found anything this specif on it.
Transformation Locks is what you need to use to lock down everything that needs to be locked. Each object has its own LOCKS for LOCKING it down to prevent it from moving.