During your search you are looking for businesses which have bar associations. See what bar associations they are members of, including the Bar of the United States Supreme The courtroom, for example. It is really an indicator that you are looking at a business with a good and reliable service who should be dedicated to their clients and will use you for a favorable outcome.
The next thing to look for as you go through the selection of regulation companies doing work in your local area is to determine their track record. Several organizations will advertise their successes on their website, but if you can't find anything at all, don't be shy to call them and ask them of their track record to ensure they have worked well on a case similar to yours or of the same nature. You can also browse http://www.harrisfamilylawgroup.com/ to hire a compassionate and skilled lawyer.
Check to see what the lawyer's specialty is. Not all law organizations work in the same law, some will provide felony law services while others may offer public legal responsibility law services. It's essential to ensure that the firm you choose has intensive experience in your sector of the regulation to permit them to provide you with the best service and hopefully a favorable outcome.