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About me

John D. Purdy,
., B.A.
(Econ.), Yale University, 1963 and J.D. 1966, University of Chicago Law School,
was an associate and then an equity partner in Ross & Hardies (1966-1983),
a founding partner in Siemon, Larsen & Purdy (1983-1991) and a partner in
Martin, Craig, Chester & Sonnenschein (1991-2002) prior to joining Momkus,
Ozog & McCluskey in February 2002. 
He concentrates his practice in the representation of lenders and
numerous closely held businesses, and the owners of such businesses. Among his
clients are banks and asset based lenders, financial intermediaries, software
developers, a number of internet based companies, an international freight
forwarder and customs broker and an independent record storage company. John
has attained the Martindale-Hubbell AV rating. His experience and achievements

  • Representation of banks, savings and loan
    associations in all phases of real estate and asset based loan
    transactions, including the negotiation and documentation of such loans.

  • Involvement in business transactions of all
    kinds, including formation, operation and sale of corporations,
    partnerships and limited liability companies.

  • Representing owners and lessors and lessees of
    real estate in purchase, sale, lease and financing transactions, including
    purchase and sale agreements, office and industrial leases, architects and
    construction contracts and financing agreements .

  • Advising his clients and
    their owners as to succession planning and estate planning issues.

John is a member of the American, Illinois
State and Chicago Bar
Associations. Born in 1941 in Chicago,
he currently resides in the Village of Clarendon Hills. Telephone: (630) 434-0380,

In addition to his
law practice, he has owned and participated in small businesses,
which has given him a working knowledge of the business and legal issues encountered generally by small businesses
and their owners.

An elected or appointed
municipal official for more than 25 years, he has lectured on land use and
municipal topics at seminars presented by Prentice Hall and the Illinois
Institute of Continuing Legal Education (IICLE).




Practice areas


  1. Business: 50%
  2. Real Estate: 25%
    46 years
  3. Debt & Lending Agreements: 25%
    31 years



Hourly ($300-350/hour), Retainer (sometimes), Free consultation (30 minutes)

Payment types:

Check, Credit card

Attorney endorsements

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Contact info

Momkus McCluskey LLC

1001 Warrenville Road
Suite 500
Lisle, IL, 60532-4306


ILActive And Authorized To Practice Law196611/12/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV RatingMartindale-Hubbell2010
Work experience
TitleCompany nameDuration
PartnerMomkus McCluskey LLC2001 - Present
MemberMartin, Craig, Chester & Sonnenschein1991 - 2001
MemberSiemon, Larsen & Purdy1983 - 1991
PartnerRoss & Hardies1966 - 1982
Association namePosition nameDuration
American Bar AssociationMember1966 - Present
Illinois State Bar AssociationMember1966 - Present
Chicago Bar AssociationMember1966 - Present
School nameMajorDegreeGraduated
University of Chicago Law SchoolLawJD - Juris Doctor1966
Yale UniversityEconomicsBA - Bachelor of Arts1963
Speaking engagements
Conference nameTitleDate
Illinois CLELand use and Municipal Topics2002