Chapter 70"...For the purposes of this subsection, a person may have at most one principal residence, and the state of a person's principal residence means the state
(1) where the person spends the majority of his or her nonworking time, and
(2) which is most clearly the center of his or her domestic life, and
(3) which is designated as his or her legal address and legal residence for voting.
The fact that a person is domiciled in this State shall not by itself satisfy the requirement of principal residency hereunder..."