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Greenbaum Law Group

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Legal services in Newport Beach, CA

Newport Beach, California
Law firm
3.8 - 16 Reviews

Contact Information

About This Office

Greenbaum Law Group is a law firm in Newport Beach, California. Public California State Bar records list 2 attorney profiles using this office address. The associated attorneys are Martin Bein Greenbaum and Stephen John Shumlas. 2 of these profiles list an active license. Their recorded admission years range from 1970 to 2017. Profiles linked to this address self-report practice areas including Debtor & Creditor and Commercial Law.

Practice Areas Reported by Attorneys at This Office

These areas come from individual attorney profiles and may not describe every service offered by the firm.

Client Reviews

Anabella Bonfa Avatar
Anabella Bonfa
10/27/2026
I'm a trade secret litigation attorney and have known Martin Greenbaum for years. When it comes to any collection matter, Martin's office is the first place I turn for assistance for my client's needs. All he does is collections and he gets the job done efficiently using his years of experience. Believe me, if he can't collect the money, no one on this planet can! I recommend him wholeheartedly.
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Miranda McCroskey Avatar
Miranda McCroskey
7/21/2026
I have known Martin Greenbaum for 15 years and he is my go to for collection questions. He is an upstanding man and the firm is five stars great!
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Chris Cashman Avatar
Chris Cashman
6/24/2026
Terrible service - would not recommend. No one ever spoke to me in detail. Intake team was slow. I was sent a letter saying my case was accepted. When I followed up, stating I was ready to move forward but had some simple questions because their acceptance letter contained some incorrect details, they suddenly declined the case. I never once spoke to anyone at all – just a few templated PDF letters.
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Skim 13 Avatar
Skim 13
5/19/2026
I contacted Greenbaum Law Group regarding a post-judgment enforcement matter involving a debtor. While their initial intake team was responsive, my overall impression was that the firm is only interested in pursuing routine, undisputed, or straightforward debt collections. However, if your matter involves a sophisticated debtor where you need a legal team willing to roll up their sleeves and fight hard, I would recommend looking elsewhere for more driven and tenacious counsel
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Daniel Venegas Avatar
Daniel Venegas
10/21/2025
Reliable and responsive, they get really took time with my company to collect my money. greenbaum? You want them in your corner!
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California attorney registration

Record matched to the official California attorney registry

Bar #45268 · Admitted 1970

Bar #317448 · Admitted 2017

Last verified November 3, 2026.

Source: California public attorney records. No affiliation or endorsement.

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