Mammuth & Rosenberg
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Mammuth & Rosenberg
Founded in 1978, Mammuth & Rosenberg helps people who have been injured in Pennsylvania and New Jersey. A single accident can change an individual's whole life. As Philadelphia, PA and Marlton, NJ personal injury attorneys, we help seek compensation for medical bills and damages. We have successfully made large insurance companies pay their fair share and will do so on your behalf.

At Mammuth & Rosenberg our attorneys understand that the client always comes first. We believe that each client should receive the same special attention that each case demands. We believe in high quality legal services provided by an entire legal team. In trial verdicts and settlements, Mammuth & Rosenberg, Attorneys At Law - have continually gained substantial compensation for our clients, regarding various claims.
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As your legal counsel, our first word of advice is do not talk to the insurance company. All communication should flow through your Philadelphia auto accident attorney. While it may seem that the insurance company is calling to cover the basic facts of the accident, anything you say can be used to deny your claim.
Mammuth & Rosenberg is dedicated to the representation of victims who have sustained profound injuries. Our practice handles complex cases arising from motor vehicle accidents, premises and products liability, and work site negligence.

In trial verdicts and settlements, the attorneys, of Mammuth & Rosenberg, have gained substantial compensation for clients and have received many awards and accolades for their expertise, professionalism, and passion behind their law firm practice.If you have been injured in a car accident, you most likely are unsure as to what to do.
Product manufacturers, by law, must provide a product that is safe for its intended use. Unfortunately, some companies produce inferior and dangerous products, and allow them to be sold to the public - resulting in various injuries. Everything from children's toys, medical instruments, to basic household items must carry some type of warranty.
Doctors, hospitals, and other medical industry professionals are held to very specific, industry-wide standard of care. When these professionals, organizations, or staff act negligently and do not provide sufficient care, they may be liable for any resulting injuries or worsening conditions. Misdiagnosis of diseases or medical conditions, ineffective or improper treatment, and prescription errors may all constitute medical malpractice.
Slip and fall accidents occur when an individual slips, trips, stumbles, and/or falls, and is injured by a dangerous condition. Not all falling accidents constitute a slip and fall accident though; the owner of the property must have either created the condition, known about its existence and failed to take proper precautions, or known about the existing conditions.
Reviews (12)
Dan Posternock
Dan Posternock
Dec 01, 2020
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I am an attorney who, like many, refers cases to other attorneys in areas of the law I don't regularly handle for geographic reasons or otherwise. Mark Rosenberg is one of my "go to" people. I implicitly trust his acumen and, just as importantly, his character. I know without question that my referrals will get the possible possible result when they're assisted by Mark.
Steven Smith
Steven Smith
Sep 22, 2020
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Mammuth & Rosenberg has been the first place I call for over a decade anytime I need legal advice. If it’s not in their field they have directed me and followed up to make sure I’ve been taken care of. When I or family or friends have needed representation, I’ve always recommended them and they have always given 110%. I work in a field with allot of Attorneys and I still go back to Mammuth & Rosenberg every time. Thanks so much for always being there!
Duncan Bachen
Duncan Bachen
Sep 22, 2020
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Positive: Professionalism, Quality
Marc is a very professional lawyer and a master at his craft. He has an understanding of what it takes to succeed - when to push and when to wait. He was kind and humorous during a time of great stress. I would recommend his services to anyone in need of representation.
J. Ellis
J. Ellis
Sep 15, 2020
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I am an attorney who practices in a different area of the law than Mammuth and Rosenberg. i have known Marc Rosenberg for 20 + years. During that time, i have referred him numerous matters and he has always obtained a good result for the client. I feel comfortable to recommend him without hesitation.
Cindy Parker
Cindy Parker
Sep 11, 2020
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Marc Rosenberg represented me in a legal case years ago. He did an awesome job!
Jessica Fleming
Jessica Fleming
Sep 10, 2020
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Very professional & courteous staff, helped navigate my family through a difficult time & remained very polite and supportive. Marc made himself available to me whenever I needed him & was very understanding & willing you work around my schedule. Positively recommend their service to anyone who requires them, I will definitely be referring friends & clients to Mammuth & Rosenberg in the future.
Michael Maiolica
Michael Maiolica
Sep 08, 2020
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Positive: Professionalism
I refer all my PA/NJ work to this excellent firm that keeps me informed as to status and consistently obtains top dollar results for all of my personal injury case referrals. Michael Maiolica, Sr Trial Attorney, Law Office of Steven Wildstein, PC, Great Neck NY
Keith Gabage
Keith Gabage
Jul 27, 2020
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I am proud to endorse Mammuth and Rosenberg. Their focus to duty, liability and damages is unrelenting. Tod and Marc are very personable and their level of professionalism is unmatched. I have been a client and with a number of years managing claims and litigation it is clear from my experience that Mammuth and Rosenberg is one of the best.
Joy Missy Halpern Abramson
Joy Missy Halpern Abramson
Jul 14, 2020
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Many experienced years of honest, professional service. Attention to detail made me feel like I was their only client. Unlike some fast talkers who say what they think you want to hear. I highly recommend the responsible, reputable team at Mammuth and Rosenberg.
Karen Lombardi
Karen Lombardi
May 09, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
Marc helped my family member through a difficult time where we needed a lot of guidance and help. He and his staff were very courteous and professional. We appreciate all that he did for us and we would certainly use his services again.
Dj A.
Dj A.
May 05, 2020
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Hello to those in need of legal assistance. Mammuth & Rosenberg has a marvelous cadre of individuals assisting in the legal proceedings. Attorney Rosenberg and his team of Ed Carr, Kim, Stephanie, & Phyllis maintained constant contact, and worked as hard and quickly as possible to bring my case to a successful resolution. Even during the Corona Virus Pandemic, this legal five-star team handled my case efficiently, swiftly, and productively!
Brandon F.
Brandon F.
May 12, 2016
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Compassionate attorneys who uphold the integrity of the law and achieve the results you are looking for. I highly recommend this lawn firm, as working with Marc and the team were great. They handle your claim with care providing you with results. A consultation is free, so give them a call to see how they can help you.