#1986/7-7 Conflict of Interest – New Client and Former Client
Even after termination of an old client, a lawyer has a continuing duty to avoid representing a new client in situations that would risk a breach of confidentiality or otherwise be unduly adverse to the old client. (Rule 1.9);
The fact that a present client is a competing business of a prior client, does not by itself constitute a direct adverse interest that would create an impermissible conflict of interest. (Rule 1.7);
A lawyer must avoid representing a new client in a substantially related matter materially adverse to a prior client. (Rule 1.9)