The federal government has named its latest suspect to a growing list of alleged phony tax advisers and preparers — and this one’s a lawyer.

On April 12, federal prosecutors asked a court to permanently bar tax attorney Philip A. Kaiser of The Kaiser Law Firm in St. Louis, Mo., from promoting several allegedly fraudulent tax schemes, most of them on behalf of wealthy clients. Kaiser joins a long list of tax advisers and preparers who have been the subject of government charges and investigations in recent months, just in time for tax season.