By hiring an attorney instead of a collection agency the power to collect the debt arises out of law, not out of threats and intimidation tactics sometimes employed by collection agencies. Not all collection agencies are bad, of course. Nevertheless, keep in mind, the Federal Fair Debt Collection Practices Act has strict guidelines on the methods that can and can’t be employed in collecting a debt. By hiring a collection agency to collect on a debt, they are acting as your agent, and as such, you could be held responsible for any unlawful tactics they happen to use in collecting your debt. If they exceed the restrictions of the Federal Fair Debt Collection Practices Act you could be held responsible for breaching this Federal law. For more on the Federal Fair Debt Collection Practices Act, See http://www.ftc.gov/os/statutes/fdcpa/fdcpact.php
An attorney acting as a debt collector is also subject to the Fair Debt Collection Practices Act. BUT, most attorneys will strictly adhere to the guidelines AND simply file a lawsuit sooner. It is ACTION the debtor will respect, not threats of action.