ADGST Real Estate Appraisal, Research, & Counseling
Argotes, Derbes, Graham, Shuffield, & Tatje, Inc. About ADGST, Inc. Certified Appraisers Professional Services Contact

Contact Information


R. Dunbar Argote, MAI

Phone: 504-830-3867
FAX: 504-830-3870

Lewis J. Derbes, MAI

Education | Technical Training | Designations & Associations
Business Experience | Court Testimonies | Major Valuation Assignments

With over 25 years of real estate appraisal experience, Lewis has an extensive background in residential, commercial, industrial, retail, vacant land, and varied special-purpose properties. He has been approved to provide testimony as an expert real estate appraiser in state and federal courts. He has a complete working knowledge of appraisal techniques and property values and has extensive experience in the analysis of major investment properties such as regional shopping centers and office buildings.


Other Certified Appraisers
Scott H. Adcock

R. Dunbar Argote
Marshall F. Graham
Arthur Schwertz
W. Ross Shuffield
Henry W. Tatje
Education:
  • University of Notre Dame – 1971
    Bachelor of Business Administration in Finance & Business Economics (Cum Laude)
Technical Training:

American Institute of Real Estate Appraisers:

  • Course I - Real Estate Appraisal – 1969
  • Course II - Urban Property Appraisal – 1972
  • Course IV - Condemnation Appraisal – 1976
  • Course 1B1 - Capitalization Theory & Techniques Part 1, (Exam Only) – 1983
  • Course 1B2 - Capitalization Theory & Techniques Part 2, (Exam Only) – 1983
  • Course 1B3 - Capitalization Theory & Techniques Part 3, (Exam Only) – 1983 

Society of Real Estate Appraisers:

  • Narrative Report-Writing Seminar
  • Course 101 - An Introduction to Appraising Real Property, (Exam Only) – 1980
  • Course 102 - Principles of Income Property Appraising, (Exam Only) – 1981

Realtors National Marketing Institute:

  • CID Course I - Principles of Commercial Property – 1972
  • CID Course A - Fundamentals of Real Estate Investment & Taxation – 1973
  • CID Course B - Fundamentals of Real Estate Development for Users – 1973

Louisiana Realtors Institute:

  • Courses I, II, & III – 1969 - 1972
Designations and Associations:
  • MAI Member of the Appraisal Institute, MAI Certificate No. 6772
  • State of Louisiana State Certified General Real Estate Appraiser #G0197
  • State of Mississippi State Certified General Real Estate Appraiser Non-Resident GA-576
  • Graduate Realtors Institute (G.R.I.) designated Member of the Louisiana Realtors Association
  • Metropolitan New Orleans Association of Realtors
  • Louisiana Realtors Association
  • National Association of Realtors
  • President, Louisiana Chapter of the Appraisal Institute 1992
  • Member, City Board - Jefferson, Hibernia National Bank 1987 - 1988
  • Member, Board of Directors & Executive Committee, Hibernia National Bank in Jefferson Parish (formerly First Metropolitan Bank) 1974 - 1986
  • Member, Real Estate Advisory Committee, Louisiana Real Estate Commission 1976 - 1977
  • Member, Board of Directors, Louisiana Realtors Association 1975 - 1983
  • Vice President Area III and Member, Executive Committee, Louisiana Realtors Association 1980
  • President, Jefferson Board of Realtors 1980 & 1981
  • Treasurer, New Orleans Chapter 126, Society of Real Estate Appraisers 1976 - 1982
  • President, New Orleans Chapter 126, Society of Real Estate Appraisers 1983
  • Treasurer, Greater New Orleans Chapter, Realtors National Marketing Institute 1976 - 1985
  • Vice-Chairman, Education Committee, Louisiana Realtors Association 1976 - 1977
  • Approved Instructor in Appraising for Louisiana Real Estate Commission 1975 - 1983
  • Program Coordinator, Annual Condemnation Seminar, Chapter 43, American Right of Way Association 1976 - 1978
  • Treasurer, Louisiana Chapter 43, International Right of Way Association 1979
  • Member, Long Range Planning Committee, Louisiana Realtors Association 1980 & 1982
  • Vice President Area 1, Jefferson Board of Realtors 1978
  • Secretary, Jefferson Board of Realtors 1979
  • Member, Executive Committee, Jefferson Board of Realtors 1979 - 1982
  • Member, Young Advisory Council of the Society of Real Estate Appraisers 1982
Business Experience:
  • Argote, Derbes, Graham, Shuffield, & Tatje, Inc. – Metairie, Louisiana
    Principal –
    January 1986 to Present

    Firm covers the state of Louisiana as well as bordering Gulf South states. Vast majority of appraisal assignments are commercial, industrial, and investment type properties.

  • Derbes-Tatje, Realtors – Metairie, Louisiana
    Principal Broker and Partner August 1983 to Present

    Sales and leasing activities are typically commercial and investment type properties, representing owners as well as purchasers.

  • Metropolitan Valuation Services, Inc. – Metairie, Louisiana
    President and Principal –
    August 1983 to December 1985

    Appraisal clients included commercial banks, savings and loans, governmental agencies, corporations, and individuals. Primary appraisal and counseling territory was southern Louisiana, with assignments extending territory to northern and western Louisiana and Mississippi. Vast majority of assignments were commercial, industrial, and investment type properties.

  • Metropolitan Appraisal Service, Inc. – New Orleans, Louisiana
    Vice President-Manager and Senior Appraiser –
    October 1979 to August 1983

    Manager of staff of seven appraisers doing residential and commercial appraisal assignments for mortgage lending by commercial banks and savings and loans in the Metropolitan New Orleans area.

  • Max J. Derbes, Inc., New Orleans, Louisiana
    Vice-President
    August 1976 to August 1983

    Appraisal and counseling experience consisted of appraisals of residential, commercial, industrial, and investment properties as well as numerous special-purpose type properties. Appraisal clients included commercial banks and savings and loan associations; local, state, and federal governmental entities; corporations; and individuals. Primary appraisal territory was southern Louisiana, but assignments included properties across the entire state of Louisiana as well as Mississippi, Alabama, and Texas.

  • Charles J. Derbes, Realtors – Metairie, Louisiana
    Realtor/Appraiser – May 1971 to July 1976

    Real estate salesman specializing in commercial and investment properties. Real estate appraisal experience included single family residential, multi-family residential, vacant urban and rural tracts, office buildings, and industrial properties. Appraisal clients included commercial banks, attorneys, and individuals as well as local and state government agencies. Primary territory covered was the seven parishes (counties) that make up the Metropolitan New Orleans Area.
 Court Testimonies:

Approved as an Expert Real Estate Appraiser in the following:

  • The 17th Judicial Court, Parish of Lafourche, Louisiana
  • The Judicial District Court, Parish of Jefferson, Louisiana
  • The Judicial Courts, Parish of Orleans, Louisiana
  • The Judicial District Court, Parish of Vermillion, Louisiana
  • Chancery Court, Madison County, Mississippi
  • United States Bankruptcy Court, Eastern District of Louisiana
Major Valuation Assignments:
  • Large garden-apartment projects in Orleans and Jefferson Parishes and in Baton Rouge, Louisiana
  • Condominium projects in Orleans, Jefferson, and St. Tammany Parishes and in Baton Rouge, Louisiana
  • Subdivisions in Orleans, Jefferson, and St. Tammany Parishes, Louisiana
  • Office buildings in Orleans, Jefferson, St. Bernard, St. Tammany, St. Charles, and St.John the Baptist Parishes and in Baton Rouge and Lafayette, Louisiana
  • Shopping centers (neighborhood, community/specialty centers, and regional malls) in Orleans, Jefferson, St. Bernard, St. Tammany, and St. John the Baptist Parishes; as well as Alexandria, Hammond, Houma, and Baton Rouge, Louisiana; Bay St. Louis, Jackson, and Laurel, Mississippi; West Palm Beach, Weeki Wachee, and Dunnellon, Florida; San Antonio, Texas City, and El Paso, Texas; and Mobile, Alabama
  • Nursing homes in over 15 parishes in Louisiana
  • Hotels/motels in Orleans, Jefferson, and St. Tammany Parishes, Louisiana, as well as in Dallas, Texas and Hattiesburg, Mississippi
  • Restaurants in Orleans and Jefferson Parishes, Louisiana
  • Large acreage tracts including timberland, farmland, and marshlands across Louisiana
  • Industrial properties including manufacturing facilities, cold storage facilities, and warehousing facilities across southern Louisiana
  • Various special-purpose properties, historic properties, and multi-use properties across the state of Louisiana

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New Orleans - 512 N. Causeway Blvd • Metairie, LA 70001 • Phone: (504) 833-8234• Fax: (504) 830-3870
Baton Rouge/Lafayette -
10455 Jefferson Highway Suite 200 Baton Rouge, LA 70809 (225) 292-3443
Shreveport - 7607 Fern Avenue Suite 104 • Shreveport, LA 71105 • (318) 797-0543

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