Landlord repeating acts that intentionally interferes with or disturb your comfort, peace or quiet
The landlord is repeating acts or omissions of such significance as to substantially interfere with or disturb your comfort, repose, peace, or quiet that cause, are likely to cause, or are intended to cause you to vacate your unit or to surrender or waive any rights in relation to your occupancy.
It is really important to document everything in a notebook, including the incidents that you feel portray the way your landlord interferes with your quiet use and enjoyment. You can also use videos, photos, and/or testimonies to prove violations.
Once you have a few incidents documented, write a letter to the landlord citing the laws that protect you. If you are covered under the Tenant Protection Ordinance (check to see if you are covered), mention this in the letter. If you are not covered under TPO, mention CA code.
Once you write the letter and send it through certified mail, give your landlord some time to rectify the situation. If they don’t rectify, talk to a housing organization before pursuing legal action to ensure that you set up a strong legal case.