@Chris85 

I don't see any issue on your network. See the example guide:

How to configure Multi-Networks & Multi-SSIDs on Omada SDN Controller

But there are still something you may need to concern:

1. Adopt ER605 on the OC200 controller first, then adopt other switches/EAPs;

2. Configure LACP before doing VLAN settings;

3. By default, all VLANs can communicate with each other. So if you want to block data traffic between the VLANs, you will also need to do Access Control;

4. I have EAP225-Outdoor, and it can do mesh with EAP620

  @Chris85 

Your network setup looks sound and well-planned. To answer your questions, the EAP 225 and EAP 620 will mesh well and provide seamless connection when in/out of range. As for the LACP connection between the house and external office, you may need to configure a layer 3 interface to ensure proper communication between the two locations.

As for the additional APs, it may be beneficial to adjust the radio channels on each AP to avoid signal interference. Additionally, it may be beneficial to configure your Access Points with Security protocols such as WPA2 or WPA3 to secure the data traveling across the network.