Combined, the two firms will manage over $3.6 billion with nine US offices, led by Highline's founder, Neal Simon, as chief executive.

Both firms have been on the M&A path recently, with Bronfman having acquired Lake Country Wealth Management in Delafield, WI, while Highline - which has offices outside of Philadelphia and in New York City - has been adding advisors from both wirehouses and RIAs.