1990 - 1995 Mag. (law) Charles University in Prague
1995 - 1998 Trainee lawyer - Law firm JUDr. Petr Víška a spol., Pilsen
1999 - 2005 independent lawyer, collaborating with Monika Wetzlerová, Pilsen
2005 - 2010 Partner at SCWP Pilsen
Independent lawyer since 2010, collaborating with SCWP Pilsen.
Jan Lerch is a member of the Czech Bar Association.