Hi Mary,
First, congratulations on resisting those M&M's. You should be proud of yourself.
As for the CP. Reflect and pray. You have a legit complaint with the paint. Use it if you need to. You may want to let your plan slip to the other tenent. He may let the landlord know what your next step is, and actually get the guy out. What ever you do, i will be praying for you.
Beth