After marriage, a premarital agreement may be amended or revoked only by a written agreement signed by the parties. The amended agreement, or the revocation, is enforceable without consideration.
W. Va. Code § 48-1A-501
Amendment; revocation
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.