eufy Security 3K Dual Camera, SoloCam S340, Solar Security Cameras Wireless Outdoor, Cameras for Home Security, 360°Coverage, Pan & Tilt, No Blind Spots, No Monthly Fee, Built-in 8GB

This WiFi camera is $120. https://www.amazon.com/eufy-Security-Wireless-Surveillance-Compatible/dp/B0CCYP6KFM Yes, you’ll need WiFi.

https://a.co/d/0awFuYFo This would be a good start but if you want 24/7 recording you will need one that is wired to electricity.

This is a good place to start - https://a.co/d/0j0J13sd

Get a camera from Amazon today. This one https://a.co/d/04xfWpuY has built in storage that you can access from the app but if you want to expand, Eufy has a lot of options and it can be delivered today) It also has a solar panel, so stays charged, and multiple cameras so you can have a wide angle and zoomed in. Then, when you catch her, report her to the HOA and get her kicked off, and the police for harassment.