I think it's basically fine, but stuffily styled. Some polishing:
We provide our clients with expert legal advice in the areas of:
- Professional training for company employees in claims management-- (Is it OK to write "for purposes"-- too wordy)
- Economic arbitration through cooperation with the Arbitration Court of Commerce -- (I don't know what 'economic arbitration' is, though.)
- Mediation of financial claims
- Legal representation in negotiations with debtors and court representation in assigned cases