Our Attorneys

Robert S. Chelle, Esq.

Founder and CEO

Robert Chelle is the founder and CEO of Chelle Law. He is an experienced attorney who has represented over 1000 professionals over the last decade in front of over 25 different Arizona Professional Licensing Boards.  Before moving to Arizona and opening his own practice, Rob gained experience with the legal departments of three of the finest health care providers in the country including:

  • Johns Hopkins Hospital
  • Rush Health System
  • Kettering Medical Network

There he gained the knowledge and experience that led him to opening his own practice in Arizona.  Today, Rob also provides employment contract review for health care providers: physicians, dentists, veterinarians, nurse practitioners, optometrists and physician assistants.  He has reviewed or negotiated over 2000 employment agreements for health care providers over the last two decades.

As the founder of Chelle Law, Rob strives continuously to provide the best service and experience for his clients. He currently lives in Scottsdale with his wife and two daughters.

DePaul College of Law, Chicago, IL
J.D., 2002, Health Care Certificate

Indiana University, Kelley School of Business, Bloomington, IN
B.S., 1999


Contact Information:
Phone: 602.344.9865

Sara Stark, Esq.

Attorney Sara Stark handles all licensing board appeals and administrative hearings for Chelle Law. She assists professionals under investigation with licensing boards and individuals in need of administrative appeals before the Arizona Office of Administrative Hearings. Prior to moving to Arizona and joining Chelle Law, Sara spent seven years practicing in the areas of complex litigation and commercial real estate. Sara has represented licensed professionals and individuals before the:

  • Arizona Medical Board
  • Arizona Board of Nursing
  • Arizona Psychology Board
  • Arizona Board of Behavioral Health
  • Arizona Registrar of Contractors
  • Arizona Board of Physician Assistants
  • Arizona Department of Real Estate
  • Arizona Board of Pharmacy
  • Arizona Board of Osteopathic Examiners
  • Arizona Board of Cosmetology
  • Arizona Board of Chiropractic Examiners
  • Arizona Massage Therapy Board
  • Arizona Board of Physical Therapy
  • Arizona Board of Respiratory Care
  • ADHS
    • Assisted Living Facilities
  • Arizona Office of Administrative Hearings
    • Adult Protective Services
    • Child Safety Department
    • Unemployment Benefits

Sara currently lives in Scottsdale with her husband and two children.


University of Memphis – Cecil C. Humphreys School of Law, Memphis, TN | J.D., 2012
University of Alabama, Tuscaloosa, AL | B.A., 2008


North Carolina
Tennessee (inactive)

Renee Osipov in front of Picture

Renee Osipov, Esq.

Renee had a career as an educator for eight years prior to attending law school. She taught elementary education in both a public school district in Illinois and in private Catholic Education. Specifically, she was a reading interventionist, first grade teacher, and second grade teacher. She also coached at the middle school and high school level.  She had previously clerked at Hinshaw Culberson specializing in medical malpractice and health law.

Renee has represented professionals in matters with:

St. Louis University School of Law
Eastern Illinois


Texas (pending)

Erin Howlett

Erin Howlett, Esq.

Prior to joining Chelle Law, Erin has practiced business law in TN, VA, MD, and DC serving clients’ business, property, and leasing needs. Her work has recently focused on reviewing and negotiating corporate vendor contracts involving capital financing, business process outsourcing, human resources, insurance and benefits, facilities, information technology, and sustainability agreements, among other areas.

With Chelle Law, Erin brings her contract review and negotiation experience to assist physicians, residents, fellows, dental and veterinary associates, nurse practitioners and physician assistants with employment contract issues.

She enjoys exploring and going on adventures with her husband and four children around the Nashville, TN area.


Antonin Scalia Law School (formerly George Mason University School of Law) – J.D., 2009

What others are saying…

Based on 142 reviews.
Michael Markow
Michael Markow
Fantastic group, very technically competent and willing to explain the nitty gritty and answer questions. Very helpful for contract negotiations. Have used the service twice in 2017 and 2022 and will be using again next time it's needed.
sigurd torgerson
sigurd torgerson
Great experience. Very though, detailed.
Diego Lima
Diego Lima
Great experience with Chelle Law. Renee explained everything to me really well. I will definitely work with them again.
Shawn Bergeson
Shawn Bergeson
I'm pleased to support the physician contract review, az board of nursing defense, and other professional licensing board defense services (Arizona Medical Board, etc.) in a marketing capacity. In addition to these, I also support the medical contract lawyers, as they review nurse practitioner, dentist, veterinarian, and physician assistant employment contracts. I have nearly a decade of experience in human resources, as a contract recruiter. I came to Chelle Law because I was in need of a stable income source, in addition to my commission based pay, during/after the pandemic Like anyone searching for a new job, they want money. The reason for this review goes beyond money. I was able to join a team with an owner who knew what he wanted. There was clarity in the work to be done. He's also growth-minded and open to new ideas, which lead to us implementing new tactics and strategies to grow the law firm. As I grew in my role, so did the firm. I was the 4th person on the team, and we soon grew to 12 (at the time of this review). As we grew from 4 to 12 people, I learned all kinds of aspects of my position (and am still learning) that kept me interested and engaged. This includes all kinds of knowledge and skills in Wordpress, SEO, Email, Social Media, Facebook Ads, YouTube, and more. Further, we grew to incorporate a marketing team of independent contractors, which has further given me knowledge and skill in management. To be interested, to be engaged and to grow professionally are all very big pluses for any position you find yourself in. I'm so grateful for the opportunity and time I've spent here. Thank you.
Derek Nieber
Derek Nieber
I came upon the Chelle Law group via an online search. After my initial phone call with their office I was greeted with a competent, patient, and enthusiastic staff member who glady learned about my needs and scheduled a telephone consultation at my convenience. They easily accommodated a few last minute scheduling conflicts and ultimately I had a great interaction with a competent and patient attorney. I was satisfied with their service and glad there was no additional charge if additional questions would arise after our time ended.
haeley johnson
haeley johnson
I contacted Chelle law to help me review my first PA contract as a new graduate. They helped me clearly understand all of the terminology and negotiate the terms of my contract. Highly recommend!
I was blown away by the professionalism and compassion provided by Tobi. Although they were not able to represent me this firm took the time to listen and provided me with the best advice they could. I only wish I had come here first.
Keivan Shalileh
Keivan Shalileh
Very helpful and quick in their responses. Renee was very attentive and helpful throughout the process. Definitely recommend.