With Mikrotik you are able to attach a DHCP Server to an interface, Bridge or a VLAN. This way you can run multiple DHCP Servers on the same router.
1. Create an IP Pool for each DHCP Server
2. Create a DHCP Server and attach it to the require interface. Repeat for each DHCP Server instance
3. Create Network settings and attach it to the required DHCP Server. Repeat for each DHCP Server instance.
MTCNA, MTCRE, MTCINE, MTCTCE, MTCIPv6E, MTCUME