The article discusses issues related to the professional mobility of attorneys-at-law in light of the Code of Ethics of Attorneys-at-Law. The author discusses changes in the profession or form of its practicing in terms of movement between the public and private sectors as well as within the private sector itself. The article also addresses the issue of changing the form of practicing the profession or the entity where the profession is practiced. These phenomena, though partially regulated by law, escape ethical regulation; the Code covers them only to a narrow extent (professional secrecy and conflict of interest). The question is, therefore, whether this and the indirect application of several other principles of professional ethics (independence, dignity of the profession, loyalty, and trust) can be considered appropriate. The author analyzes if the application of the above ethical principles is sufficient in terms of safeguarding against the unethical use of relationships or networks from the professional past as well as avoiding the related reduction in independence, conflicts of interest, breach of professional secrecy, or loyalty.