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California Collection Attorney who specializes in recovery of bad debts, and Stock Broker Malpractice Nationwide to recover stock losses.

Our California Collection Attorneys collect commercial claims, foreclosures, loans, promissory notes and other types of debt obligations. Our Collection Lawyers will provide services on Hourly or contingent fees. We are a law firm, not a collection agency. Greenbaum Law Group LLP doesn't send whinny letters or make threatening phone calls. Our California Collection Lawyers sue debtors! We do it fast and aggressively. We take steps to get your money back quickly and effectively with maximum client service, honesty and adequate staffing. See our website at

We also enforce judgments other lawyers have obtained but haven't collected as well as enforcing judgments obtained in states other than California.

Stock Loss Recovery nationwide.  Stock Broker cases involve investor claims where a stock broker has abused the trust of his client. Common grounds for stock broker loss recovery are the stock broker making an unsuitable recommendation, the stock broker churning to earn excessive commissions, a stock broker failing to execute a buy or sell order when instructed, outright theft or embezzelment, stock broker breach of fiduciary duty, selling products other than registered securities and unjustified fund switching. See our website at Our Stock Broker Attorneys and support staff will be glad to review your stock broker abuse claim without obligation if you lost over $250,000 due to stock broker abuse.

California Collection Service and Stock Broker Malpractice Nationwide.  Offices in California, Colorado and New York.


Languages spoken: Spanish, Polish, Ukrainian, Russian, Vietnamese

Photos and videos

370131 1257308123

Practice areas


  1. Debt Collection: 98%
    37 years, 5 thousand cases
  2. Investment Fraud: 2%
    27 years, 150 cases



Hourly ($330-450/hour), contingent (33-40%), Retainer (sometimes)

Payment types:

Cash, Check

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Mary Candice Bryner

    I endorse this lawyer for all your collection needs.


    Mary Bryner Litigation Attorney
    Relationship: Fellow lawyer in community

  • Atticus Newkirk Wegman

    I endorse this lawyer.


    Atticus Wegman Personal Injury Attorney
    Relationship: Fellow lawyer in community

Contact info

Greenbaum Law Group LLP

840 Newport Center Dr Ste 720
Newport Beach, CA, 92660

Greenbaum Law Group LLP

110 Wall Street, 11th Floor
New York, NY, 10005-3817

840 Newport Center Dr Ste 720
Newport Beach, CA, 92660



NYCurrently registered 200603/13/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV RatedMartindale-HubbellN/A
Work experience
TitleCompany nameDuration
Deputy District AttorneyLos Angeles County District Attorney1970 - 1975
Association namePosition nameDuration
Cardozo Legal SocietyChairman2006 - 2009
Orange County Bar Association, Creditors' Rights SectionCo-chairN/A
Legal cases
Case nameOutcome
Bank vs Personal GuarantorsMultiple cases were recovered in full
See all legal cases 
Publication nameTitleDate
The Debt Collector10 Tips for Effective Collection Calls2013
Toll Road NewCollection of Tolls and Penalties2007
School nameMajorDegreeGraduated
University of California - Los AngelesN/AOther - BachelorsN/A
University of California at Los Angeles School of LawN/AJD - Juris DoctorN/A
Speaking engagements
Conference nameTitleDate
Orange County Bar AssociaitionEthical Collection2009
Advance Collection TechniquesAdvanced Collection Techniques2009