While I'm not clear on your process, I would suggest considering a slightly different setup. Instead of Addresses and Sub-Addresses, how about a Household that has many Contacts? You could have the user fill out the Household record with the address info and then have an embedded Grid Edit report for the Contacts where they could enter all the Names and Phone Numbers for the different individuals. This setup would eliminate the need for any automations and would make maintenance on the app a bit easier in the long run, since you don't have to have so many duplicate fields on the Parent record.
------------------------------
Blake Harrison
bharrison@datablender.io
DataBlender - Quick Base Solution Provider
Atlanta GA
404.800.1702 /
http://datablender.io/------------------------------
