John C. (Clint) Callan, Jr.


  • John C. (Clint) Callan, Jr.
  • Phone: +1 415 957 3317
    Fax: +1 415 354 3410

    Import to Address Book

  • Duane Morris LLP
    Spear Tower
    One Market Plaza, Suite 2200
    San Francisco, CA 94105-1127

John C. (Clint) Callan, Jr. advises clients on real estate transactions and land use matters for commercial, residential, retail and industrial projects. He focuses on land acquisition, disposition and development, along with the purchase, sale, finance and exchange of investment properties. In addition, Mr. Callan represents clients in matters related to commercial, office and retail leasing, as well as ground leases. He also provides counsel on loan workouts involving distressed real estate assets; San Francisco land use matters; entitling and selling transferable development rights; easement, boundary and encroachment disputes; and pre-construction matters involving contracts and shoring and excavation issues.

Mr. Callan is a 1982 graduate of the University of San Francisco School of Law and a 1978 graduate of the University of California, Berkeley.

Areas of Practice

  • Real Estate
  • Land Use

Representative Matters

  • Represented University in transactional aspects of development of 650-unit student housing complex; handled negotiation of financing and owner-developer models for project including ground lease proposals, development agreements, and construction and management agreements; developed protocols for environmental compliance and remediation provided advice and input on collateral agreements.

  • Prepared, coordinated and implemented strategy for negotiation and sale of conference and retreat facility (>60 acres) in Los Gatos, CA; matter involved multiparty negotiations with the buyer; local planning, health, water, sewer, and tax agencies and departments; and insurance company for post-closing obligations including slide repairs and waterline easement disputes.

  • Handling a $27 million investment opportunity and related loans for an investor in New York initially involved in the construction of a cannabis greenhouse/manufacturing/distribution operation in California. The matter includes the documentation and due diligence for loan transactions, capital formation, operating agreements, security interests, real estate deals, as well as federal, state and local tax issues, related to his participation in the overall investment and joint venture.
  • Represented buyer of two prominent San Francisco waterfront restaurant ground leases including entity formation and environmental due diligence.
  • Assisted a group of investors in the $6 million acquisition of a commercial property in Sacramento, California that will be converted into an indoor commercial cannabis cultivation facility. Also assisting and advising the investors on the organizational structure required to operate such a facility, the formation of the operating entities and are assisting the investors with obtaining the necessary local and state permits.
  • Due diligence for investors in Cannabis production facilities in Coachella and Palm Springs CA.
  • Represented investment fund in purchase and/or sale of five San Francisco office buildings and two office buildings in Oakland.
  • Represented San Francisco private university in the purchase of a historic office and classroom complex South of Market Street, San Francisco.
  • Represented developers of three mixed use (multifamily condominium and retail) projects in the Hayes Valley and Market/Octavia Corridor, San Francisco. Transactions included negotiation of all construction contracts, excavation and tieback agreements, resolution of easement disputes.
  • Represented developer of a three-tower, 350-unit multifamily and retail project in Mission District, San Francisco. Project includes environmental review, affordability components, negotiation of construction contracts, excavation and tieback agreements, and related issues.
  • Represented seller in transactions for more than 400,000 units of transferable development rights (TDRs) in San Francisco, including applications to amend the Zoning Map and Planning Code, entitling the TDRs, and handling the purchase/sale transactions.
  • Represented San Francisco homeowners in successfully enjoining the improper excavation of and construction on the adjoining hillside in violation of permits and Slope Advisory Commission protocol. Representation included numerous appearances at Board of Appeals and the imposition of an interim emergency stabilization and shoring plan to stabilize the hillside pending resolution of construction issues.
  • Represented seller of landmark bar and office building in Healdsburg, California.
  • Represented seller of winery and assets in Calaveras County, California.
  • Represented landlords and tenants in the negotiation of office leasing in San Francisco's Financial District and South of Market properties.
  • Represented property owners in Santa Clara County concerning enforcement of water and easement rights.
  • Represented ground lessor on several development projects including mixed use multifamily condominium project in Colma and development of facilities for a private high school in San Francisco.
  • Represented property owners in condemnation cases and easement disputes in Santa Rosa, Colma, San Jose, and City of Industry including successful negotiation of compensation packages and favorable easement provisions.


  • California


  • University of San Francisco School of Law, J.D., 1982
  • University of California, Berkeley, B.A., 1978


  • Duane Morris LLP
    - Partner, 2015-present
  • McKenna Long & Aldridge
    - Partner, 2013-2015
  • Luce Forward
    - Partner, 2004-2013
  • Tobin & Tobin
    - Associate/Partner, 1983-2004

Honors and Awards

  • Listed in Best Lawyers in America, 2021 and 2022
  • Northern California Super Lawyers, 2010-2014
  • Super Lawyers Business Edition, Real Estate, 2011
  • Best of the Bay Area
  • AV Preeminent® Peer Review Rated by Martindale-Hubbell®

Professional Activities

  • California Bar Association
    - Real Property Section
  • Bar Association of San Francisco
    - Real Property Section
    - Cannabis Law Committee

Selected Publications

Selected Speaking Engagements