So what I am attempting to do is take the WAN port and make that like a separate vlan where there is two ports in that particular VLAN.

I am plugging the routerboard into an existing network that serves up DHCP. The WAN interface gets a DHCP address from that network.

What I would like to do is take port5 and put it in the same vlan as port1 (WAN) have it get a DHCP address just like the WAN interface and look like it is out in that network. Then the rest of the ports will work like normal and get the standard microtik 192.168.88.x/24 dhcp addresses from the routerboard.

How do I do that?

Ive been searching for about 3 hours. I made a bridge port and put both interfaces in that bridge. That worked fine but then all the remaining lan ports and WIFI would not get an address.

So I was close I think.

Any ideas?

Thank you in advance.

I would have to look at your config, but did you change interface 5 so that it is not using interface 2 as it's master port? When you add interfaces to a bridge, you should adjust the related IP addresses to the bridge, and that also applies to src nat masq. out interface too.