The recorded deed shows whose names are on title. A divorce decree or another court order that addresses the house may also affect whether a sale can proceed and what signatures are needed. Do not assume that being married, separated, or divorced by itself answers who can sign for this property.
The title company reviews the actual ownership and closing documents. A Virginia family-law attorney can explain what an order requires in your situation. You can tell us about the house while those document questions are being reviewed.
Virginia Code § 20-107.3 covers how a court classifies and distributes property in a divorce. Read it with the deed and any order about the house; an attorney can explain how those documents apply to your situation.