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About me

John is the Chair of the firm's Real Estate, Land Use and Construction Law Practice Group and a member of the Business Law Group. He counsels his clients in all areas of real estate development, construction law, and commercial and construction financing: including, property acquisitions and dispositions; commercial, industrial, retail and office leasing;  zoning; and land use law; and creditors' rights. John provides both preventive and remedial legal counsel to financial institutions, real estate developers, REITS, architects, engineers, hotel owners, construction companies, design builders, commercial lessors and tenants, and title insurance companies.  He also has significant experience in environmental matters and brownfields redevelopment.


John Assists Clients With

• Construction and Commercial Financing
• Commercial Leasing
• Condominium Development and Association Management Issues
• Planning, Zoning and Land Use Law
• Environmental Law and Brownfields Redevelopment
• Creditors’ Rights

Representative Clients

  • Archidiocese of Milwaukee

  • Bechtel Corporation

  • Iron Mountain Information Management, Inc.

  • MSI General Corporation

  • Total Mechanical, Inc.

  • Journal Sentinel, Inc.

  • HOK Construction Services, Inc.

  • First Business Bank, Milwaukee

  • Brixmor Property Group

  • Marcus Corporation

  • Waukesha County

  • Heuler Tile Company

Examples of John’s Recent Client Work

• Served as local counsel for an international construction and engineering firm for the development of a $2.2 billion power plant. 

• Represented a commercial bank on the syndication, acquisition and closing of a $71 million construction loan for a 17 story class A office building.

• Represented a commercial bank on a $16 million refinance of a hotel and restaurant loan.

• Represented a commercial seller on the $3.3 million sale and exchange of a multi-tenant retail shopping center.

• Represents a school district as special real estate counsel on all of its acquisitions and dispositions of school facilities and sites.


• Local counsel for national drug store retailer on municipal permitting for store site locations.

• Served as special real estate counsel for the development of a $107 million newspaper production facility for the owners of the Journal Sentinel, Inc., obtaining a voluntary Party Remediation and Exemption From Liability status for the newspaper. This helped break the cycle of disinvestment in West Milwaukee by allowing the newspaper company to build a new facility in one of the first reclaimed brownfields in the State of Wisconsin.

• Represented Fortune 500 records management firm as local counsel for lease negotiations and disputes.

• Served as counsel for the architectural and engineering design team for the Wisconsin Center.

• Represented a national real estate syndication and management firm in its multi-state acquisitions, financings, and sales of multi-family apartments, office buildings, shopping centers, and other commercial properties.

• Represented a national construction contractor on contract disputes relating to the $3 billion Denver Airport facility.

• Represented a publicly-held hotel and restaurant company in its acquisition of a 1,300 acre resort hotel and conference center in Southeastern Wisconsin.


Practice areas


  1. Real Estate: 20%
  2. Environmental: 20%
  3. Land Use & Zoning: 20%
  4. Commercial Real Estate: 20%
  5. Construction: 20%


Payment types:

Cash, Check, Credit card

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Contact info

O'Neil, Cannon, Hollman, DeJong & Laing S.C.

111 E Wisconsin Ave
Suite 1400
Milwaukee, WI, 53202-4807


WIGood Standing197803/19/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Best Lawyers in America® (Construction Law/Real Estate)Best Lawyers2016
Best Lawyers in America® (Commercial Litgation/Corporate Law)Best Lawyers2016
Best Lawyers in America® (Construction Law/Real Estate)Best Lawyers2015
Wisconsin Super LawyersLaw & Politics Magazine2015
Best Lawyers in America® (Commercial Litgation/Corporate Law)Best Lawyers2015
Wisconsin Super LawyersMilwaukee Magazine2015
Best Lawyers in America® (Commercial Litgation/Corporate Law)Best Lawyers2014
Best Lawyers in America® (Construction Law/Real Estate)Best Lawyers2014
Best Lawyers in America® (Commercial Litgation/Corporate Law)Best Lawyers2013
Best Lawyers in America® (Corporate Law/Commercial Litigation)Best Lawyers2013
Wisconsin Super LawyersMilwaukee Magazine2013
Wisconsin Super LawyersLaw & Politics Magazine2013
Best Lawyers in America® (Construction Law/Real EstateBest Lawyers2012
Wisconsin Super LawyersLaw & Politics Magazine2012
Wisconsin Super LawyersMilwaukee Magazine2012
Milwaukee's Leading Lawyers (Const., Land Use & Real Estate)M Magazine2012
Wisconsin Super LawyersMilwaukee Magazine2011
Best Lawyers in American® (Construction Law/Real EstateBest Lawyers2011
Wisconsin Super LawyersLaw & Politics Magazine2011
Wisconsin Super LawyersMilwaukee Magazine2010
Wisconsin Super LawyersLaw & Politics Magazine2010
Best Lawyers in America® (Construction Law/Real Estate)Best Lawyers2010
Wisconsin Super LawyerMilwaukee Magazine2009
Best Lawyers in America® (Construction Law)Best Lawyers2009
Wisconsin Super LawyersLaw & Politics Magazine2009
Profiled in the Construction Law EditionThe Daily Reporter and the Wisconsin Law Journal2008
Wisconsin Super LawyerMilwaukee Magazine2006
Wisconsin Super LawyerLaw & Politics Magazine2006
Wisconsin Super LawyerMilwaukee Magazine2005
Wisconsin Super LawyerLaw & Politics Magazine2005
AV Peer Review RatedMartindale-HubbellN/A
Work experience
TitleCompany nameDuration
ShareholderO'Neil, Cannon, Hollman, DeJong & Laing S.C.2009 - Present
Association namePosition nameDuration
American Bar Association, Forum Committee on the Construction IndustryMemberN/A
Sate Bar of WisconsinMemberN/A
Miwaukee Bar AssociationMemberN/A
American State BarMemberN/A
Sisters of the Devine Savior Sponsorship Board of DirectorsBoard of DirectorsN/A
Brookfield Rotary ClubDirector & PresidentN/A
International Council of Shopping Centers (ICSC)MemberN/A
Divine Savior Holy Angels High SchoolDirectorN/A
Westmoor Country ClubDirectorN/A
Elm Grove Community FoundationDirector & PresidentN/A
American Institute of ArchitectsAffiliate MemberN/A
Waukesha County Bar AssociationMemberN/A
Make-A-Wish FoundationDirector & PresidentN/A
School nameMajorDegreeGraduated
Marquette University Law SchoolLawJD - Juris Doctor1978
Marquette UniversityN/AN/AN/A
Speaking engagements
Conference nameTitleDate
Hot Topics for In-House Counsel Seminar"Working with In-House Counsel: The Unauthorized Practice of Law in Wisconsin"2011
Speaking EngagementsCommercial Loan Workouts, Lendor Liability Claims, Brownfields DevelopmentN/A