Accounting & Consulting Means More Than Running Numbers.

It presents a portrait of your business health and insight into its future.

Painting the financial portrait requires knowledge of law and its applications, as well as counsel regarding strategy and the financial consequences of decisions. At Melnick, Lilienfeld, Castonguay, LLC, our success has been built on helping collect and the timely, accurate use of financial information, then responding quickly to market changes, trends and alterations in your operation.

We understand the business marketplace. Our services range from tax, business and real estate consulting to estate, corporate and individual planning. We take advantage of advanced technology to enhance efficiency and thus profitability. We have particular strength in IRS representation—win-win resolution of tax-related disputes.

We pride ourselves in delivering client service …with a personal touch. By seeing clients as family members, we have built trust among a roster of hundreds of corporations and individuals.

1551 Sawgrass Corporate Parkway, Suite 100 | Sunrise, Florida 33323

Toll Free: (800) 937-1040

Dade: (305) 937-1040 | Broward: (954) 943-1040

Important Deadlines To Remember

April 15, 2020

  • Deadline for filing a 2019 personal, partnership, or estates/trusts tax returns or extension.
  • Due date for first installment of 2020 estimated tax payments.

September 15, 2020

  • Final deadline to file your 2019 corporation, S-corporation, partnership, or estates/trusts tax return if you filed an extension.
  • Due date for third installment of 2020 estimated tax payments.

October 15, 2019

  • Final deadline to file your 2018 personal tax return if you filed an extension on or before April 17.

I have looked to Marisa for personal and corporate tax advice for the past several years. She has been outstanding to work with from day one. Time and time again she has gone the extra mile. She offers personalized attention and service that you would not typically receive at a large firm. She’s extremely responsive, attentive to detail, and answers all my questions competently, thoroughly, and most importantly in a way I can understand. In addition to being reliable and trustworthy, I have been very impressed with the quality of her work and professionalism. I highly recommend Marisa to anyone needing accounting services.


My husband and I have been clients or Melnick, Lilienfeld, Castonguay CPA’s LLC since 2004 and have worked directly with Marisa Margulies. I have always been impressed with the turnaround time on our personal and business taxes. Marisa is professional, communicative and is always looking out for our best interest. I greatly appreciate the personal attention and interest Marisa takes with her clients where I can say I am NOT just another number. Over the years I have been happy to refer family and friends to Melnick, Lilienfeld, Castonguay CPA’s, LLC and would recommend Marisa every time.

Laurie and Marc Diaz of Marc A Diaz, P.A.

Thanks so much for your advice and support through our new business cycle. We couldn't have made it without your help.

Stephen Mathews Ryland Real Estate Advisors, Inc.

My wife and I love your web site. As retirees we have found the information and charts a valuable tool in managing our retirement assets. Melnick, Lilienfeld, Castonguay CPA’s are truly concerned about elders. Keep up the good work!

John Stokesberry