local Social Security office
You have the right to appeal the decision on your SSI claim if you disagree with the outcome. For further information on the steps you can take on this, including the right to be represented by an attorney or other qualified person of your choice, Your Right To Question A Decision Made On Your Supplemental Security Income (SSI) Claim (Publication No. 05-11008). When applying for SSI you can complete a large part of your application by visiting their site at socialsecurity.gov, or call them toll-free at 1-800-772-1213 so you can setup an appointment with a Social Security representative.