Do the lairs you have already visited from prior gaming remain level locked (i.e., if you entered at 50, the creatures therein stay locked at 35 to 50)? And can you level lock new locations before maxing out?

Also, do you have to remain in Legendary difficulty to retain legendary skills status, or can you level it and return to normal.

Forgive me, I will admit, I want (provided the damned thing works and does not remain glitchrendous) to become more powerful, but I don't want every monster in the world to become a damned demigod.

Yes, enemies in a location will be locked to your level when you first enter.

No, difficulty doesn't matter with Legendary Skills. You can even do it on Novice.

Thank you wise master. This is good news for me. Pray my game works right once the Legendary patches kick in. If it does, I should be in for a lot of playing pleasure.