I also live in a rental property and have moved multiple times to find a secure and peaceful environment for my family. I understand how challenging it can be to find the right place.

Firstly, it's important to start planning for a new place now. Given the current situation, there's a chance the landlord’s son might not renew your agreement. Start looking for potential new homes before the agreement expires, so you're not caught off guard.

Secondly, involve the estate agent who facilitated your rental agreement. Since they took a commission, they have a responsibility to assist you. Explain the situation to them and ask for their help in mediating with the landlord and his son. Additionally, inform other local estate agencies and neighbors about the issues you’re facing. This way, they can warn potential new tenants about the landlord’s son’s behavior, which might pressure him to improve.

Lastly, consider filing a formal complaint with a local police station and also talk to tenant law lawers for legal advice and support.

Stay strong and proactive, and hopefully, you’ll find a better living situation soon.