(810) 624-1368

Two things are certain.
We handle them both!

Two things are certain. We handle them both!Two things are certain. We handle them both!Two things are certain. We handle them both!

Two things are certain.
We handle them both!

Two things are certain. We handle them both!Two things are certain. We handle them both!Two things are certain. We handle them both!

(810) 624-1368

  • Landing page
  • About the firm
  • Services offered
  • Blog

Great Lakes Law Firm, PLLC

Great Lakes Law Firm, PLLCGreat Lakes Law Firm, PLLCGreat Lakes Law Firm, PLLC

Tax & Inevitability Planning for life's certainties.

Expertly handled by an attorney who cares.

Client and attorney meeting in Grand Blanc, Michigan, at Great Lakes Law Firm.

Practice areas and services overview

  • IRS exam or audit defense
  • IRS tax appeals
  • Michigan tax issues
  • Trusts and estate planning in Michigan
  • Tax strategies
  • Legal counseling

View Services & Fee Estimates

Here's what past clients had to say about Peter J. Mancini:

Sara L. said about her IRS mess...

Sigrid said about compassionate service and finding savings...

Sara L. said about her IRS mess...

"Peter seamlessly guided me through the filings and appeals. He made something that felt impossible easy and stress free. I highly highly recommend him for tax situations as well as contracts as he is so advanced in his field and so knowledgeable of the law as well as irs practices."


Read More

Tuula said about her relief...

Sigrid said about compassionate service and finding savings...

Sara L. said about her IRS mess...

"I am relieved that Peter’s excellent defense on my behalf gives me peace of mind."

Read More

Sigrid said about compassionate service and finding savings...

Sigrid said about compassionate service and finding savings...

Sigrid said about compassionate service and finding savings...

"A Breath of Fresh Air . . . To sum our experience up in one word - Compassion! In the most trying of circumstances, we found Peter to be not only comforting in his guidance and direction, but knowledgeable, intelligent, factual and thoroughly efficient. He identified "a change in law . . . that result[ed] in SIGNIFICANT tax savings."

Read More

Contact Us

Drop us a line!

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Follow us on social for updates.

Copyright © 2026 Great Lakes Law Firm, PLLC

Grand Blanc, Michigan, 48439

Serving northern Oakland and Genesee Counties in Michigan and nationally for federal tax issues.

All Rights Reserved.

Powered by

This website uses cookies.

We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.

Accept