Our firm exists to not only meet our clients needs but to exceed their expectations in every way possible

We are Passionate About Helping Our Clients Get the Best Results Possible.

Welcome to the Law Office of William M. Jacob. Our firm exists to not only meet our clients needs but to exceed their expectations in every way possible. We do not operate an ordinary  or commonplace law office. At our firm you will always have ready access to the staff and the attorney. We pride ourselves with providing a level of customer service and satisfaction that is absolutely unmatched in the legal industry.

We have the broad experience required to address your specific concerns.


Of Cases Handled Successfully: Legal proceedings can be a tough, lengthy and emotionally unsettling. Since we want your case to be as smooth as possible, we approach each and every case with an open mind from the beginning. We are willing to work from scratch with you in efforts to achieve the case results you desire. From the initial consultation until the day your case is finalized, William M. Jacob is here to advocate on behalf of you and your interests.

William M. Jacob, Attorney At Law


“I am dedicated, honest and take a genuine interest in my clients and my work. I do not shy away from high conflict cases.  I will aggressively litigate a matter if that is what is in the client’s best interest.  On the other hand, I am always ready to find creative ways to meet my client’s goals through dispute resolution.”

Practice Areas

Family Law

Criminal Law

Immigration Law


Personal Injury

Why Should You Take Action?

I understand how much anxiety my clients go through when they are faced with legal issues. It is my goal to provide each client with individual attention and to guide you through the process with a minimum difficulty or stress. I am absolutely committed to helping you with your case and achieving the best outcome possible.

Call now for an initial consultation:

(972) 792-7600

What Our Former Clients Say:

Google Review:

Posted by Ms Lady

I met Mr. Jacob at Fathers for Equal Rights about 2 years ago in search of an attorney to help me with my custody case. He was the third attorney that I had spoken to within the program and later became about the fourth or fifth attorney that I would end up hiring for my case. I had been trying for almost 10 years to get my children back from my ex-husband who had been keeping them from me off and on for the majority of those years. After telling Mr. Jacob my story and giving him a much clearer understanding of what I was up against, he was more than ready and excited to take on the challenges of my case. Mr. Jacob worked many hours, days, nights and sometimes weekends preparing for court, but what I appreciated the most about him was his honesty and integrity. Not only did Mr. Jacob help me win my case, but he also gave me words of encouragement throughout those months because the process was a bit difficult to handle at times and Mr. Jacob understood that. I am not a religious person, but I always felt that William Jacob was God sent because I was ready to give up. Mr. Jacob is one that I consider to be very professional with himself and his work and is also very passionate about what he does. I was so very pleased with his work on my first case that, not only have I sent a few of my closest friends/relatives to him, but I’ve decided to use him again for another unrelated case. In my honest opinion, Mr. William Jacob is the ABSOLUTE BEST family attorney in Dallas County!!! If I could give 100 stars I would. Thank you William Jacob for all that you have done for my family….MelaninQueen

Google Review:

Posted by Leo Last
I have nothing but good things to comment about Mr. Jacob, both in the legal field and at a personal level; In 2018 I was facing several misdemeanors and even a felony charge for dumb mistakes I made. I hired Mr. Jacob with the hope to help sort my situation out and the results were beyond mine and my wives’ expectations. Mr. Jacob managed not only to dismiss all my cases but made them all eligible for expunction. I’m very grateful for all his help, Mr. Jacob truly gave me a second chance. I cannot recommend him enough, he is very professional, kind, and funny. To top it all off; after having great success with my criminal cases, I’m pleased to say that he will also handle my adjustment status case. (A jack of all trades per se.)

Google Review:

Posted by Carlos Castillo
A few years ago, I was referred to Mr. Jacob by one of his clients when I was going thru a divorce. I am glad I was referred to him because he is a true professional and an honest person. When Mr. Jacob great me at his office he always take the time to ask me how I am doing, how is my family, he is not only a great attorney but also a nice human being who cares for his clients. I am greaful to Mr. Jacob because he also helped with the immigration process of my present wife whom was able to obtain legal status in this country mostly because Mr. Jacob knew exactly what to do from the beginning of the application process. I appreciated that he understood my financial situation and gave a payment plan. I would highly recommend him one hundred per cent. Thank you Mr. Jacob!

Google Review:

Posted by Gloria Lara
I am very pleased with Mr. Jacobs legal services. My husband and I like his work ettics and honesty. He worked on my immigration case in a very professionally and timely manner and because of that, I was able to obtain legal status in this country sooner than I expected. I highly recommend his legal services.


Posted by Teresa

Less than year ago I hired William and based on my experience William has always been professional and knowledgeable. My son was facing major charges and with William’s knowledge and expertise, my son is no longer facing any further legal actions. I still utilize his services for any legal issues. I have referred him to family members and friends. I now use him as my family attorney. He still continues to provide excellent service and continues to be professional. He is always attentive, hands on and timely. I can’t say one bad thing about him as he has always been available no matter the time or day/night. Each time I have reached out to William he has always responded to my needs to include him being at the hospital visiting his mother, out to dinner with his family and out shopping during the holiday season. William is an excellent attorney and I highly recommend utilizing his services.

Fantastic Lawyer

Posted by Jason

I went through 3 lawyers prior finding William Jacob Law Office. Family/custody battles can be brutal…but knowing first hand experience how bad lawyers can be and how messed up our court system is…William is truly one of the few good ones. He was prompt to every meeting/hearing/appointment. He listened to every word I said. He cared. He was personable, light hearted and extremely generous…he should be charging more for as good as he is. He has very helpful personal insight to many of the “legal people” you will be at the mercy to in our system. I have known William for going on 8 years now…and can honestly say that if you are looking for a family lawyer…and i’m not sure what all Law he practices…but he is your guy.


Posted by Arahi Perino

Mr. Jacob has been our family attorney for some years now. He is an awesome lawyer and has helped my mother tremendously I highly recommend his law office. Very professional and very pleasant to work with. Always greets you with a smile

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Visit us


Law Office of William M. Jacob, PLLC
100 North Central Expressway
Suite 330
Richardson, Texas 75080 USA


Phone: (972) 792-7600
Fax: (972) 792-7603


Monday-Friday: 9:00 AM – 5:00 PM

Unless otherwise indicated herein, Not Certified by the Texas Board of Legal Specialization. The content on this website is for general information purposes only.  It should not be taken as legal advice for any individual case or situation. Please understand the information on this website is not intended to create or constitute an attorney-client relationship.