I don’t know what planet you came from, but it takes more than words for someone to not become the resident of a certain domicile. If someone decides to move out of a place and skip on paying rent, the landlord could still take them to court for not living up to the contract of a lease.
So basically, if you continue to live up to the terms of the lease, ie. paying rent on time, you continue to the be the resident of that place until you sign a contract saying you no longer want to be.
Word is his bond................. look who our president is. Look at all the promises he made to so many people that he never kept. Can I sue him personally for breaking so many promises?
There are several terms you need to learn to deal with ~ residence, residency, domicile, and depending on what you're talking about ~ taxes, voting, buying, selling, marriage, running for office, etc ~ the meaning of each may change in subtle ways. These things are not as absolute as you might imagine.