Generally, yes. Specializations don't verify that the required stats are maintained, so they will continue to function. Though 'Executor' will enforce a minimum obedience of 50 as it states.
Edit: Very high stress is the most effective way to reduce mental stats, just make sure she remains healthy. Otherwise, pet and nudity advanced rules or pet collar can be used to slowly reduce them to moderately low levels.
Viewing post in Is it possible to lower mental stats?
It should be pet suit, the slave collar only raises loyalty, obedience, and stress.
Rules: https://itch.io/post/921626