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Nihem, Monaghan-Punch join firm, establish Grosse Pointe office

06.10.2026

Former Hartmann & Nihem, PLLC attorneys, Nancy A. Nihem and Haley A. Monaghan-Punch, recently joined Plunkett Cooney to create the firm’s new Grosse Pointe, Michigan office.

Nihem, who was a former principal of Hartmann & Nihem, PLLC, joins Plunkett Cooney as a senior attorney in the firm’s Trusts and Estates Practice Group and as managing attorney of the new location, which is located at 63 Kercheval, Suite 200, Grosse Pointe Farms, Michigan 48236. In addition to Nihem and Monaghan-Punch, a former Hartmann & Nihem legal assistant has also joined Plunkett Cooney.

With over 35 years of experience, Nihem creates tailored plans and strategies involving estates, business succession, estate tax and gifting. She has significant experience drafting wills, trusts and powers of attorney for both financial and health care decision-making, as well as serving as a successor trustee and advising personal representatives, trustees, fiduciaries and beneficiaries in both complex and uncontested estate and trust administration matters.

Admitted to practice in state and federal courts in Michigan, Nihem is a member of the State Bar of Michigan. She graduated from the University of Detroit School of Law in 1991 and received her undergraduate degree from the University of Detroit in 1987.

Associate attorney Haley A. Monaghan-Punch also joined the firm as a member of the Trusts & Estates Practice Group. She focuses her practice on probate and trust administration and sophisticated estate planning matters across Michigan.

In addition to handling estate plans, wills and trusts, Monaghan-Punch has experience advising clients with probate proceedings, estates holding diversified investment portfolios, multi-property real estate interests, retirement assets and closely held business interests.

Monaghan-Punch is a 2019 magna cum laude graduate of Cooley Law School. While there, she received several academic accolades, including certificates of merit awards in civil procedure II, business organizations and estate planning. She received her undergraduate degree from the University of Michigan in 2015.

Established in 1913, Plunkett Cooney is a leading provider of business law and litigation services to clients in the private and public sectors. The firm employs attorneys in eight Michigan cities, Chicago, Illinois; Columbus, Ohio; and Indianapolis, Indiana.

Plunkett Cooney has received the highest rating (AV) awarded by Martindale-Hubbell, a leading peer review service, as well as recognition by Best Lawyers as one of the nation’s leading law firms. The firm was also named among the Best Legacy Law Firms by Michigan Lawyers Weekly, a leading news outlet covering the state’s legal industry.

For more information about Nancy Nihem and Haley Monaghan-Punch joining Plunkett Cooney, contact John Cornwell of the firm’s Practice Development Department at (248) 901-4008; jcornwell@plunkettcooney.com.

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