A premarital agreement becomes effective upon marriage.
W. Va. Code § 48-1A-401
Effect of marriage
Known as the Uniform Premarital Agreement Act
The act spans §§ 48-1A-1001 to 48-1A-901 (11 sections).
Official source: West Virginia Legislature. Reproduced from public-domain West Virginia statutes; confirm against the official source for the current text. Not legal advice.