One of those myths too many programmers believe: All street addresses can accept US mail. Not necessarily the issue in this comment, but when somebody gives you both a shipping address and a mailing address and you send mail to the shipping address, the fault is yours if it doesn't arrive.
One of those facts that mortgage owners refuse to internalize: the party responsible for the payments is not necessarily living on the property. There is absolutely no reason in this century to assume that the mailing address for real estate mortgage related correspondence is the address of the property. Related: the assumption that if there are two names on a mortgage with given names that are commonly understood to be gendered, the parties are legally married.
Another: A particular street address only maps to one person, entity, or family. Counterexample: Giant skyscraper with a zillion tenants, each in a different suite. Or a giant apartment building. Etc.
Still another: One particular suite address only maps to one person, entity, or family. Counterexample: Any of thousands of commercial mailbox-rental / package-shipping stores in US strip malls, which tend to have suite numbers (within the mall) and possibly hundreds of tenants, all at one suite.
