William Bernard Tunink (CRD #2738224) Has Multiple Customer Dispute Disclosures and an Employment Separation Disclosure on FINRA BrokerCheck

William Bernard Tunink (CRD #2738224) was previously registered with LPL Financial LLC and Avantax Investment Services, Inc. We reviewed his BrokerCheck report on April 10, 2026. It reflects 24 customer disputes and one employment separation disclosure. If you invested with William Tunink and have concerns, keep reading.

BrokerCheck link: BrokerCheck

BrokerCheck report: BrokerCheck Report (PDF)

Employment Separation

William Tunink’s FINRA BrokerCheck Report reflects one employment separation after allegations. A summary of that disclosure is below:

On September 8, 2025, LPL Financial LLC discharged William Tunink. William Tunink’s FINRA BrokerCheck report states the allegations involved failing to disclose and receive prior approval for loans from customers. The report also says he settled a customer complaint away from the firm.

Investor Disputes / Customer Complaints

William Tunink’s FINRA BrokerCheck Report reflects 24 customer dispute disclosures. Below are two examples from that category. BrokerCheck shows 22 additional customer dispute disclosures.

On March 12, 2026, a customer alleged William Tunink borrowed funds from the customer for an investment opportunity away from the firm. William Tunink’s FINRA BrokerCheck report lists the claimed damages as $307,131.36. The matter was pending when BrokerCheck was reviewed.

On February 24, 2026, a customer alleged William Tunink borrowed funds for an investment opportunity away from the firm. William Tunink’s FINRA BrokerCheck report lists alleged damages of $41,000. BrokerCheck shows the matter settled on February 24, 2026, for $41,000.

Rule Summary #1: FINRA Rule 3240 (Prohibition on Borrowing From or Lending to Customers)

FINRA Rule 3240 generally bars registered representatives from borrowing money from customers unless a narrow exception applies and the firm allows it. The rule is designed to reduce conflicts and the risk of personal financial dealings with clients.

Rule Summary #2: FINRA Rule 3280 (Private Securities Transactions of an Associated Person)

FINRA Rule 3280 requires written notice before an associated person participates in a private securities transaction away from the firm. Claims about outside investment opportunities can raise questions about whether the activity was disclosed and supervised.

Why This Matters to Investors (Regulation Best Interest)

Regulation Best Interest (Reg BI) is a U.S. securities regulation. It strengthens the standard of conduct that broker-dealers owe to retail investors. It applies when they recommend securities transactions or investment strategies. The U.S. Securities and Exchange Commission adopted Reg BI. It became effective on June 30, 2020. Reg BI aims to protect investors while preserving access to brokerage products and services.

Reg BI requires broker-dealers and financial advisors to act in a retail customer’s best interest at the time of a recommendation. They must not place their own financial or other interests ahead of the customer’s. This standard is higher than the older “suitability” rule. Suitability meant a recommendation only had to be appropriate. It did not have to be the best option or free of conflicts.

Reg BI has four key obligations:

Disclosure Obligation – Broker-dealers must disclose material facts about the relationship and the recommendation. This includes fees, the scope of services, and conflicts of interest.

Care Obligation – Broker-dealers must use reasonable diligence, care, and skill. They must consider costs, risks, and alternatives when making a recommendation.

Conflict of Interest Obligation – Firms must identify conflicts of interest. They must disclose them and mitigate or eliminate them. This includes conflicts that create incentives to favor one product over another.

Compliance Obligation – Firms must maintain policies and procedures. Those policies should be designed to ensure compliance with Reg BI as a whole.

Reg BI applies to each recommendation. It is not a continuous duty like the fiduciary standard for registered investment advisers. Even so, it narrows the gap. It puts more focus on costs, conflicts, and investor-focused decision-making.

Overall, Regulation Best Interest promotes transparency. It also aims to improve the quality of investment recommendations. It is designed to reinforce trust between retail investors and broker-dealers in the U.S. securities markets.

Background Information (from BrokerCheck)

Based on his FINRA BrokerCheck report, William Tunink:

Was previously registered with LPL Financial LLC and Avantax Investment Services, Inc.

Has passed the Securities Industry Essentials (SIE) exam, Series 7, Series 6, and Series 63.

Has 24 customer dispute disclosures and one employment separation disclosure on BrokerCheck.

Kurta Law Can Help

If you worked with William Tunink and have concerns about his activity, Kurta Law may be able to help you evaluate your legal options. To speak with Kurta Law, call 877-600-0098 or email info@kurtalawfirm.com.

Helpful resources: FINRA Rule 3240 | Securities Attorney

For nearly 20 years, Kurta Law has advocated for investors and helped hold financial professionals accountable. Our firm represents clients nationwide in securities arbitration and related disputes. If you believe a broker or firm mishandled your account, an attorney can review the facts and explain possible next steps.