Neighbors internet...

Hi, my neighbor gave me access to his WiFi Router. Now I want all of my devices and computers with internet.

Configuration: Router from Neighbor (((-))) Raspberry Pi — My Router (bridge Mode) — All devices.

Is there a way to encapsulate all of my devices, so that my neighbor does not see my devices?

Would there a conflict, if I set my Raspberry Pi to DHCP mode?

Thx.