Whenever bank-based advisors consult him about changing firms, Scott Matasar makes sure they take one crucial step: adding their contact information to their resignation letters. JPMorgan's recent succession of lawsuits accusing former bank-based advisors of improperly soliciting their ex-clients' business has brought such considerations to the forefront. But of those who do, a disproportionate share are bank-based advisors. Both suits contain language that runs like a refrain through JPMorgan's legal actions against its former bank-based advisors. They're also sending a message to other bank-based advisors who may be thinking about leaving.