[pardner]

IMO for purposes of a demand letter on a small matter like this you could almost pick an attorney at random. Call a couple of solo lawyers who have small ads the yellow pages, explain what you want, ask for a quote for the initial demand letter. Also, instruct them to take NO further billable action after sending the letter w/o your express permission (to avoid them racking up another hour's fee to "review the reply" if your former employer sends them a reply). If they get a reply instead of a check, they should simply forward it to you. At THAT point contact your state labor board.