@virusbcn that will lead to asymmetrical traffic flow. And the return traffic to the other pfsense would have no state.. Even if you created a transit between the pfsenses.
Use 1 pfsense, create 2 different lan side networks that your pfsenses have a transit network to talk to each other to get to each others networks. Do source natting of the traffic, use host routes on your devices.
There are many ways to skin this cat.. Pick one of the ways. The easiest solution is just to do a source nat, an outbound nat on the pfsense doing the vpn so that clients you talk to on this shared lan think the traffic is just coming from that pfsense lan IP.