I hired an atty who specialized in SS disability claims. As soon as she heard I had ms and my sx she took my case - the only $$ she expected me to pay were any expenses she incurred and 1/3 of the back $$ from when I first applied. Granted the 1/3 is a goodly amt but she made it so easy/smooth that it was absolutely worth it. She didn't charge me the $200-300 in expenses; I figured it was because she made many thousands from my case.
Good luck,
Linda