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Yvonne Cornett began her career working for one of the top ten CPA firms for three years. After relocating to Portland OR, she owned her own accounting and tax practice. She has managed her own firm for more than 25 years specializing in Small Business Quickbooks setup and S-Corporation taxes. Her current practice is located in Crystal Lake, IL, and has been existense for 22 years. Her company expertise includes Individual, Corporate, and Not-for-Profit taxes. Yvonne is a certified Quickbooks Pro Advisor and is passionate about sharing her knowledge and experience in Quickbooks as well as taxes.



Linda Farris began her career with McGladrey & Pullen, LLP, the fifth largest accounting firm in the United States. During the fifteen years she worked at McGladrey, she specialized in serving the small to mid-market clients. Since 2009, she has worked with Onsite Accounting & Tax Services, Inc., and enjoys working with every facet of a client’s business. Her expertise includes preparation of Not-for-Profit, Fiduciary, Individual, and Corporate tax returns, resolving IRS notices, financial statements preparation, payroll, sales tax, and Quick Book consulting. Ms. Farris’ proficiency in all aspects of accounting makes it easy for her to communicate with questioning clients in layman’s terms.

Maria Soto de Frescas

Staff Accountant/Payroll

Maria Soto de Frescas began her career in Mexico as a Staff Accountant for a construction company. During the thirteen years she worked in Mexico, she specialized in construction accounting. In 2006, she moved to the United States where she continued her studies at College of Lake County. After graduating, she relaunched her career with Onsite Accounting &Tax Services, Inc., working as a bilingual Staff Accountant. Her current position allows her to prepare payroll, monthly bank reconciliation and maintaining Quickbooks accounting records. She also enjoys preparation of Individual tax returns and assisting with Corporate tax returns. Maria being bilingual, has allowed her to communicate with people from the community who speak Spanish. She enjoys spreading her knowledge with those she interacts with.

Kathleen Nugent

Office Manager