Jeffery Koskinen

John Doncaster is the principal of Doncaster Wealth LLC in Hinsdale, IL, holding Series 63 and Series 65 licenses with 12 years of industry experience. He previously worked at Northwestern Mutual and Pacific Life, where he maintained roles from 2012 through 2025. Outside of advisory work, he is involved in insurance sales and servicing. Doncaster Wealth LLC provides discretionary asset management and financial planning services tailored to clients’ goals, time horizons, and risk tolerance. The firm employs methods including fundamental and cyclical analysis, as well as Modern Portfolio Theory, and accepts discretionary trading authority to implement strategies.

I believe that everyone should have access to a professional advisor who understands their needs and can help them achieve the lifestyle they desire. As a financial advisor, I am dedicated to learning about your personal goals and using them to build a retirement plan tailored to your unique situation. NexJenn Financial Services was founded in response to the demand for financial planning from my tax clients. Often squeezed between spending for their kids’ education, caring for an elderly relative and saving for their own retirement, many were anxious about their financial future. I have enjoyed helping my clients find a balance and focus on building a strong financial future. I am a CPA® and CERTIFIED FINANCIAL PLANNER Professional®, as well as a Retirement Income Certified Professional®. Additionally, I am a member of the National Association of Personal Financial Advisors and the XY Planning Network. In my spare time, my husband and I volunteer at a homeless shelter. I also love to bike and travel and am an aspiring photographer. I have been married for 30 years and together with my awesome husband, we’ve raised three awesome kids.

Christopher Krzus is a financial advisor at Wolfstone Wealth with 23 years of industry experience. He holds Series 63 and Series 65 licenses and previously worked for U.S. Bancorp Investments for 12 years before joining Wolfstone Wealth in 2023. Outside of his financial advisory role, he coaches 8th grade girls volleyball at the Sports Performance Volleyball Club in Aurora, IL. Wolfstone Wealth provides discretionary investment management, financial planning, and consulting services to individuals, families, trusts, businesses, and qualified retirement plans. The firm uses a proprietary, diversified asset allocation methodology informed by multiple analytical approaches and offers customized portfolio management with regular plan reviews.

Jeffrey Dvorak is a CFP® professional with 13 years of experience in financial advising. He has been the sole advisor at 4D Financial Advisors, LLC since 2012. 4D Financial Advisors serves individual and high-net-worth clients by providing investment supervisory services and comprehensive financial planning, including retirement, tax, estate, insurance, and education planning. The firm manages approximately $88 million for about 62 clients, employing a long-term, globally diversified investment approach tailored to documented client objectives and risk tolerance.

Michael Lamke is a CFP® professional with 13 years of experience in financial advising. He is the sole advisor at Lamke Financial LLC in Wheaton, IL. In addition to his advisory role, he has been a manager at AT&T since 1984. Lamke Financial provides financial planning and investment guidance to individuals, families, and small businesses, focusing on tailored advice for retirement, estate, and tax planning. The firm emphasizes a long-term, safety-oriented investment approach using passive equity exposures, dividend stocks, and fixed-income instruments, and operates on an hourly or project-based fee model without discretionary trading authority.

Joseph Menconi is a CFP® professional with 20 years of industry experience. He has worked at Heritage Drive Wealth Management LLC since 2020 and previously spent 24 years at JMG Financial Group, Ltd. in Naperville, IL. Heritage Drive Wealth Management provides asset management and fee-based financial planning services to individual and high-net-worth clients. The firm uses a combination of fundamental and technical analysis with strategic and tactical asset allocation, managing individualized portfolios primarily composed of mutual funds, ETFs, exchange-listed securities, and fixed-income instruments.