About The Firm

YoffeCooper was formed with the idea that our clients' needs are the center of our practice.

Our attention to every detail of our clients' businesses, and our level of availability to our clients at all times, sets us apart. We treat every call, email, letter, or smoke signal from a client as the most important thing happening in our day. We appreciate that our clients have allowed us the honor of representing them and make sure that we show our appreciation every chance we get. We regularly communicate with our clients to stay in tune with their business needs, and attempt to know as much about their business as a business partner would. When we are called on for our advice, our primary goal is that our clients make smart business decisions, we then use our experience, knowledge, and common sense to make the law work for the right business choice.

A true Southern California business law firm.

Our practice is a full-service, business law practice focused on the needs of the business owner and entrepreneur. We believe that a business should not be viewed as merely a client, but also a partner. It is our mission to provide sound legal and business counsel to all businesses, from start-ups to established ventures, as their trusted counsel.

Meet The Firm

Partner

Michael Cooper

Michael Cooper, or “Coop” to his friends and clients, is a founding partner of YoffeCooper where his practice is divided between corporate counsel and dispute resolution.

Michael Cooper, or “Coop” to his friends and clients, is a founding partner of YoffeCooper where his practice is divided between corporate counsel and dispute resolution.

Michael earned his undergraduate degree from the University of Southern California, his master’s from Loyola Marymount University and law degree from Pepperdine University Caruso School of Law, with a focus in Business and Entrepreneurship.

Coop lives in the South Bay of Los Angeles with his wife, Ashley, and twins, Clark and Norah. Outside of the office, you can find him on the golf course, on the mountain, tasting wine or whiskey and coaching a variety of sports.

Partner

Alexander Yoffe

Alex is a founding partner of YoffeCooper, and primarily focuses on representing start-ups and growth-stage companies, and advising them from formation to exit.

My name is Alexander Yoffe, but usually I go by Alex. I am the Yoffe part of Yoffe Cooper.

My favorite part of being a lawyer consists of representing start-ups and growth-stage companies, and advising them from formation to exit. Currently I am excited to be educating clients about NFTs, Web 3.0, DAOs, and the changes coming to every business.

I earned my undergraduate degree from the University of California, Los Angeles, my MBA from Loyola Marymount University, and law degree from PACE University, with a focus in Business and International Law. During that window I also studied in France, England, Austria, Germany, Australia, and New Zealand, as part of my love of international business law.

I live in Manhattan Beach, CA, with my wife Kristen and son Cayden. When not working, or spending time with my family and friends, I enjoy surfing, golf, snowboarding, travel, wine, whiskey, and tequila tasting, or figuring out the best way to make pastrami from scratch.

Senior Associate

Amanda Betsch

Amanda Betsch is a senior associate at YoffeCooper, and focuses her practice on civil litigation.

Amanda Betsch is a senior associate at Yoffe & Cooper, and focuses her practice on civil litigation. She earned her undergraduate degree from the University of San Diego and her law degree from the University of San Diego School of Law. Outside of the office, Amanda spends her time enjoying adventures with her husband and two small children, going to concerts, and enjoying good food and wine.
Associate Attorney

Colin Mani

Colin Mani is an Associate Attorney with a broad range of experience in corporate governance, breach of contract and fiduciary duty claims, and real estate related transactions and litigation.

Colin Mani is an Associate Attorney at YoffeCooper. Colin joined YoffeCooper in 2022 offering a broad range of experience in corporate governance, breach of contract and fiduciary duty claims, and real estate related transactions and litigation. Prior to joining the firm in 2022, Colin's practice focused on matters related to common interest developments and construction defect claims.

Colin earned his undergraduate degree from the University of Wisconsin-Madison (Go Badgers!) and law degree from California Western School of Law. Colin lives in San Diego with his wife, Taryn, and two kids (Jade & Kai). When not working, you can find Colin on the golf course, traveling, or at your local brewery or winery.

Senior Counsel

Daniel Quisenberry

Danny enjoys representing clients in advanced protections of all manner of property, contract and business rights.

Daniel (“Danny”) Quisenberry is a very “seasoned” litigator, with the passion of a young buck and the wisdom of knowing where and when to apply that passion. He enjoys representing clients in advanced protections of all manner of property, contract and business rights. This has allowed him to successfully represent property and business owners with everything from IP, trademarks and copyrights worldwide, to property line disputes and business arguments down the street. Predicting results of a dispute, and following through in the most efficient manner to achieve those possible results, is a special forte. This does not always mean filing every possible motion or objecting to every shadow of an issue (which results in a huge legal bill) – it usually means well planned and surgical strikes that really mean something in the end. Mr. Quisenberry is at his best in court or at trial, and winning while adhering to supreme ethical standards, is paramount. He enjoys water, music, entertainment, travel, philanthropy, and riding boards of all shapes and sizes. In fact, he is or has been on many boards from Chambers of Commerce, to think tanks (The Future Foundation), to Rotary Clubs, and was a Founding Member of the Association of Surfing Lawyers. Hailing from UCLA Law, Danny has represented or litigated against many of the biggest musical artists and record/entertainment companies (Beach Boys, Steppenwolf, Prince, Capitol Records, Time/Warner, and many more), and his own rap name is “Sweet White Chocolate”.
Legal Secretary

Melissa Koebli

Melissa is a native South Bay local with a B.A. from CSU Long Beach.

I am a native South Bay local with a B.A. from CSU Long Beach. When I’m not in the office assisting our attorneys, I enjoy Peloton rides, karaoke, puppies, road trips and wine tasting/breweries. My dislikes: seafood, weak margaritas and yard work. My dream vacation is to the beautiful Sedona, Arizona (which I have made into a reality a few times, and it never gets old).
Paralegal

Ayden Vargas

Ayden is a paralegal at YoffeCooper, having previously worked with labor & employment unions in Los Angeles.

Ayden is a paralegal at YoffeCooper, having previously worked with labor & employment unions in Los Angeles. She attended UC Santa Cruz for her paralegal studies where she focused on: estate planning, wills & trusts, intellectual property, copyright & trademark, and constitutional law.

Ayden splits her time between Lake Arrowhead and Marina del Rey, where she enjoys teaching SCUBA, rock climbing, playing soccer, and going on roadtrips with her dog, Gheera.