Map IP on LAN 1 to WAN 2?

[n8sabes]

I have two ISPs (configured on WAN_1 and WAN_2 adapters) and have all client devices on a single LAN (LAN_1). How can I force all traffic to/from a specific IP address over WAN_2? No matter what I try, the client device always goes out WAN_1.

[Derelict]

Policy route to WAN2_GW for that single source address.

https://doc.pfsense.org/index.php/What_is_policy_routing

[n8sabes]

I wasn't finding the advanced options on the firewall rules to override the default gateway. Works great. Thank you.