With the assistance of speakerfritz on an other thread I verified I was using the correct process.
I was able to successfully remove and reinstall one of my access points. So I have verified that the process I am using is correct. I also verified that my local app and cloud app are behaving properly.
I reviewed my notes on the install and issues log and noted I had to have the Meraki team assist me in get my security umbrella working properly. I noted they mention the cloud configuration was not correct. Cannot confirm if that was due to the original GX20 install or not since I did not get the umbrella until I installed the AP's which was months later.
I trust the Meraki team will chime in on my 2 support cases - Case 08689003 (this was for not being able to delete GX20) and Case 08656060 (this was wan port at 100Mbps and asked about the delete process).
If I cannot get this resolved I will send back the GX50 and move to another solution that can use my fiOS 500/500 connection and if that is the case FiOS will be upgraded to 1Gbps.