This is good advice, especially because anyone who is serious about using the address will be passing it through CASS certification or geocoding on the backend

This is good advice, especially because anyone who is serious about using the address will be passing it through CASS certification or geocoding on the backend before using the address. Such APIs are fully capable of parsing the full address without you splitting the address lines. http://www.datasciencetoolkit.org/ http://www.datasciencetoolkit.org/ https://accuzip.iaccutrace.com/cass/#/app https://accuzip.iaccutrace.com/cass/#/app https://developers.google.com/maps/documentation/javascript/examples/geocoding-simple https://developers.google.com/maps/documentation/javascript/...