What recourse do I have if I was not properly notified before the property was sold in tax sale?

You can request that the court vacate the tax sale. This would give you the opportunity to either pay the taxes and stop the tax sale. The difficult issue here is what is proper notice, as an owner, notice is generally sent to your last known address and if that fails, the notice is given in a local newspaper and (usually) the county sheriff's website.

FOR WEST VIRGINIA ONLY: There is a statutory procedure for overturning a tax sale deed if the owner was not notified. However, this is very complicated and often requires a civil action in circuit or federal court and requires an attorney. You should seek the advice of an attorney.

You could seek to set aside the sale, which will take and attorney and it a long shot. It is very difficult to prove a negative. Call an attorney if you are willing to risk the fees you will have to pay for the possible recovery.