W. Va. Code § 33-43-4a
(a) Prior to commencing any civil action, the commissioner may compromise any claim relating to the liability of a person with respect to any tax, including any surcharge, interest, additional tax, fee, fine or penalty, administered by the commissioner under this chapter for any taxable period. The following conditions apply to any agreement entered into under this subsection:
The agreement must be in writing;
(2) In the absence of a showing of fraud, malfeasance or misrepresentation of a material fact, then:
(b) The commissioner may compromise all or part of any civil case arising under the provisions of this article. The following conditions apply to any agreement entered into under this subsection:
(1) Any liability for tax, including any surcharge, interest, additional tax, fee, fine or penalty, may be compromised upon consideration of the terms and conditions of the compromise agreement in light of any or all of the following:
(c) Whenever a compromise agreement is made by the commissioner under subsection (a) or (b) of this section, there shall be placed on file in the commissioner's office an opinion from the commissioner's legal counsel. The opinion must include the following: