client centered practice

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Gilliland Vanasdale Sinatra Istik Law Office, LLC is a Full-Service Law Firm in Pennsylvania with AV Preeminent® rated Attorneys and Super Lawyers dedicated to achieving justice for its valued clients.  

Seeking Justice for All.  For More Than 20 Years, We Stand Up for You!  

Deanna L. Istik, COO

A solid reputation for exemplary service and achieving results in western Pennsylvania

For more than twenty years in business, Gilliland Vanasdale Law Office, LLC, now known as Gilliland Vanasdale Sinatra Istik Law Office, LLC, has been named to the Pittsburgh 100 list of companies three years in a row and voted “Best Attorney” by the readers of the Butler Cranberry Eagle in the first-ever Community Choice Award.

Attorney Jennifer Gilliland Vanasdale and Gary T. Vanasdale both earned the distinguished AV Preeminent® Rating by Martindale-Hubbell, the highest achievement earned by a select group of lawyers who are recognized for their legal ability and professional ethical standards.

Managing Attorney and Member Jill D. Sinatra has been named Pennsylvania Super Lawyer, Rising Stars and earned a perfect 10.0 AVVO rating based on client and peer reviews.  Member Deanna Lyn Istik also was named a Pennsylvania Super Lawyer, Rising Star and earned the highest client champion Platinum recognition with Martindale Hubbell.

Gilliland Vanasdale Sinatra Istik Law Office, LLC is recognized as one of the “10 Best” Family Law firms in Pennsylvania and Attorney Gilliland Vanasdale has been named as one of the “10 Best” family lawyers since 2015.  Attorney Gilliland Vanasdale was also listed as as a Top Lawyer in Pennsylvania in the Legal Network’s edition.  Our law office consistently earns the Martindale Hubbell Client Distinction Award – an award we deeply value, as it is determined based on our favorable client feedback.

Our AV Preeminent® rated and Super Lawyer members have utilized their extensive experience to counsel clients across a broad spectrum of legal issues.  As our results indicate, clients appreciate our focus on the issues that matter most to them, our willingness to craft an approach to their unique circumstances, and our commitment to fighting for their best possible outcome.  They can tell from our attentive consultation, thorough strategy review and vigorous litigation that our attorneys are personally invested in our clients’ success.

Whether you face a legal matter that involves court, including but not limited to, jury trials, bench trials, appeals, any type of hearing, conferences before domestic relations and/or any administrative proceedings, or a matter that does not involve court, to include also mediation and/or alternative dispute resolution, closings or preparation of other legal documents, our team of highly skilled and dedicated attorneys will be beside you every step of the way to assist you with your unique legal needs.

We work hard and are dedicated to providing excellent, comprehensive representation characterized by responsiveness to our valued clients’ concerns, along with passionate representation for their unique legal needs.  We represent individuals and businesses and look forward to helping you with your unique legal needs.

For More Than 20 Years, We Stand Up For You!

Contact a determined team of diligent attorneys in Cranberry Township, Eighty Four, and Butler, Pennsylvania

If you have a pressing legal issue and need dependable and diversified counsel, Gilliland Vanasdale Sinatra Istik Law Office, LLC is ready to help.  To schedule an appointment, call us at 724.741.0536 or contact our firm online.

Personal Injury Lawyer | Family Law Lawyer | Divorce Attorney | Estates | Real Estate | General Practice
Serving clients throughout PA, including:
Butler County | Cranberry Township | Allegheny County | Pittsburgh | Eighty Four  | Washington County

Gilliland Vanasdale Sinatra Istik Law Office, LLC main office is conveniently located in Cranberry Township, Pennsylvania
and easily accessible to all of our valued clients.


Serving all, seeking justice.

We stand up for you.


Gilliland Vanasdale Sinatra Istik Law Office, LLC received the Martindale-Hubbell Client Distinction Award  for Client Review Ratings of 5.0 out of 5.0. Please see our Client Feedback