Sarah Robinson: Supreme Alliance Advisor Fired by Avantax

Brewster, Massachusetts financial advisor Sarah Robinson (CRD# 4443947) was recently terminated by Avantax Investment Services in connection with an alleged rule violation. Financial Industry Regulatory Authority records show that she is now registered as a broker with Supreme Alliance.

Ms. Robinson’s BrokerCheck report discloses her termination from Avantax Investment Services. Filed in March 2025, the disclosure states that the firm fired her in connection with allegations that she violated a firm supervisory procedure that prohibited representatives “from signing a customer’s signature to paperwork.”

A second disclosure on her BrokerCheck report concerns an investor complaint against her. Filed in February 2025, it alleges that as a representative of Avantax Investment Services, she committed identity theft and was responsible for “unauthentic signatures on account documentation.” The pending complaint alleges unspecified damages.

Supreme Alliance’s website includes a section describing the firm’s approach to servicing its customers. “Supreme Alliance offers mutual funds and variable investment products as well as financial planning and managed account opportunities,” it explains. “The primary objective of Supreme Alliance is to provide products and services best suited to assist our customers’ efforts to attain their investment objectives and to help them address their short and long-term financial needs.”

According to the Financial Industry Regulatory Authority, Sarah Robinson holds 23 years of securities industry experience. Based in Brewster, Massachusetts, she has been registered as a broker with Supreme Alliance since May 2025. She was previously registered with Avantax Investment Services in Brewster, Massachusetts from 2001 until 2025. Her credentials include the passage of four securities industry qualifying exams: the Securities Industry Essentials Examination, or SIE; the General Securities Representative Examination, or Series 7; the Investment Company Products/Variable Contracts Representative Examination, or Series 6; and the Uniform Securities Agent State Law Examination, or Series 63. (Information current as of June 7, 2025.)

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