Resources Our goal is to make working with DLH Financial Services a great experience. This collection of useful links and resources is here to help you easily access tax return and other information often requested by our clients. Join our list of happy clients. Work with us. Useful Links N Check Federal Tax Refund Status N Check Michigan Tax Refund status N City of Detroit Tax Info N Internal Revenue Service (IRS) N State of Michigan Treasury N Social Security Administration N US Small Business Association Look No Further. Get Started Today Make an appointment.