McDermott Investment Advisors, LLC is a registered investment adviser with its principal place of business in Naples, Florida. Our firm is organized as a limited liability company domiciled in Florida. We have been providing investment advisory services since 2004. Dean McDermott, Ph.D. is our principal owner and began his career in the financial services industry in 1987. Currently, we offer the following investment advisory services, which are personalized to each individual client:
• Portfolio Management Services
• Financial Planning Services
• Selection of Other Advisers As used in this brochure, the words “we,” “our” and “us” refer to McDermott Investment Advisors, LLC, and the words “you,” “your” and “client” refer to you as either a client or prospective client of our firm. Also, you may see the term Associated Person throughout this Brochure. As used in this Brochure, our Associated Persons are our firm’s officers, employees, and all individuals providing investment advice on behalf of our firm. The following paragraphs describe our services and fees. Please refer to the description of each investment advisory service listed below for information on how we tailor our advisory services to your individual needs. Portfolio Management Services We offer discretionary and non-discretionary portfolio management services. Our investment advice is tailored to meet our clients’ needs and investment objectives. If you retain our firm for portfolio management services, we will meet with you to determine your investment objectives, risk tolerance, and other relevant information (the “suitability information”) at the beginning of our advisory relationship. We will use the suitability information we gather to develop a strategy that enables our firm to give you continuous and focused investment advice and/or to make investments on your behalf. Once we construct an investment portfolio for you, we will monitor your portfolio’s performance on an ongoing basis, and will rebalance the portfolio as required by changes in market conditions and in your financial circumstances. In order to participate in our discretionary portfolio management program, you will have to grant our firm discretionary authority in writing to manage your account. Discretionary authorization will allow our firm to determine the specific securities, and the amount of securities, to be purchased or sold for your account without your approval prior to each transaction. Discretionary authority is typically granted by the investment advisory agreement you sign with our firm, a power of attorney, or trading authorization forms. You may limit our discretionary authority (for example, limiting the types of securities that can be purchased for your account) by providing our firm with your restrictions and guidelines in writing. If you enter into non- discretionary arrangements with our firm, we must obtain your approval prior to executing any transactions on behalf of your account. We encourage you to reconcile our invoices with the statement(s) you receive from the qualified custodian. If you find any inconsistent information between our invoice and the statement(s) you receive from

the qualified custodian please call our main office number located on the cover page of this brochure. Financial Planning Services We offer broad-based and structured financial planning services. Financial planning will typically involve providing a variety of advisory services to clients regarding the management of their financial resources based upon an analysis of their individual needs. If you retain our firm for financial planning services, we will meet with you to gather information about your financial circumstances and objectives. Once we review and analyze the information you provide to our firm, we will deliver a written plan to you, designed to help you achieve your stated financial goals and objectives. Financial plans are based on your financial situation at the time we present the plan to you, and on the financial information you provide to our firm. You must promptly notify our firm if your financial situation, goals, objectives, or needs change. You are under no obligation to act on our financial planning recommendations. Should you choose to act on any of our recommendations, you are not obligated to implement the financial plan through any of our other investment advisory services. Moreover, you may act on our recommendations by placing securities transactions with any brokerage firm. Selection of Other Advisers As part of our investment advisory services, we may recommend that you use the services of a third party investment adviser (“TPA”) to manage your entire, or a portion of your, investment portfolio. After gathering information about your financial situation and objectives, we will recommend that you engage a specific TPA or investment program. Factors that we take into consideration when making our recommendation(s) include, but are not limited to, the following: the TPA’s performance, methods of analysis, fees, your financial needs, investment goals, risk tolerance, and investment objectives. We will monitor the TPA(s)’ performance to ensure its management and investment style remains aligned with your investment goals and objectives. Types of Investments We offer advice on equity securities, warrants, corporate debt securities, commercial paper, certificates of deposit, municipal securities, investment company securities, US Government securities, options contracts on securities, and interest in partnerships investing in real estate, oil and gas interests, and others. Additionally, we may advise you on any type of investment that we deem appropriate based on your stated goals and objectives. We may also provide advice on any type of investment held in your portfolio at the inception of our advisory relationship. You may request that we refrain from investing in particular securities or certain types of securities. You must provide these restrictions to our firm in writing. Wrap Fee Programs McDermott Investment Advisors, LLC does not participate in any wrap fee programs. Assets Under Management As of December 31, 2022, we manage discretionary assets under management of approximately $191,616,838 and non-discretionary assets under management of approximately $31,154,389.