Rayner & Haynor Investment Counselors, an advisory firm based in Mill Valley, Calif., has joined United Capital Financial Advisors LLC, a registered investment advisor based in Newport Beach, Calif., United Capital announced Monday.

Rayner & Haynor works with 85 households and has $185 million in assets under management. President Charles M. Haynor will become a managing director at United Capital.

The acquisition helps United Capital expand its influence in northern California, United Capital says.