In a Ch 7 Bankruptcy, why would Trustee apply to emply "Special Counsel" and a law firm be employed for the Trustee?

It would state in the application what the purpose is, but there are many possible reasons.  One would be to prosecute fraudulent transfers, another would be to recover preferential payments made by the debtor pursuant to 11 USC 547.  Another would be to litigate a denial of discharge action against the debtor pursuant to 11 USC 727, just to name a few. Mark Markus has been practicing exclusively bankruptcy law in California since 1991.  He is a Certified Specialist in Bankruptcy Law by the State Bar of California Board of Legal Specialization,  AV-Rated by martindale.com, and A+ rated by the Better Business Bureau.