Our tuition plan requires employees to stay employed with our company 2 years after they receive reimbursement. We also require them to sign a promissory note.

Unfortunately, we have had quite a few people leave before the expiration of their promissory note. Any suggestions on how to collect? Collection agency, court orders?

Find an attorney that handles collections. The note should provide for attorney's fees if there's a default in payment and collection action must be taken. Typically, notes will also provide for a higher interest rate after default.