Nathan maintains an active pro bono practice at DLA Piper and has recently represented a victim of sex trafficking in obtaining vacatur of more than one hundred criminal convictions that the victim incurred while being trafficked in multiple US jurisdictions.

In 2013, the Public Interest Law Center of Philadelphia (PILCOP) presented Nathan and his team with the Thaddeus Stevens Partnership Award, which recognized them for their pro bono representation in a case alleging racial discrimination in a public school district. The case addressed claims that minority students were systematically and disproportionately placed in special education programs and the low-level classes as a result of their race.