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KoonsFuller: The Firm With More Board-Certified Family Lawyers Than Any Other in Texas

Bill Koons started KoonsFuller in 1978 as one of the first Texas law practices to handle divorce and child custody cases exclusively — no general practice overflow, family law only, from day one. Nearly five decades later, the firm says it has more attorneys Board Certified in Family Law by the Texas Board of Legal Specialization than any other firm in the state, a claim that, if accurate, makes it one of the deepest concentrations of that specific credential anywhere in Texas. This profile joins Awesome Attorneys’ coverage of Dallas family law attorney options.

At a Glance

Origin & Background

Bill Koons founded the firm in 1978 as one of the first Texas practices dedicated exclusively to divorce and child custody law. Ken Fuller, a member of the first-ever class of Texas board-certified family law attorneys, joined shortly after. Ike Vanden Eykel, now the firm’s CEO and Dallas managing shareholder, and Rick Robertson, President and Plano managing shareholder, joined in the 1990s and expanded the firm into what is now a five-office, North-Texas-and-Houston practice. Vanden Eykel has been ranked the #1 Family Law attorney on the Texas Super Lawyers list, according to the firm’s own reporting. The firm has been instrumental in Texas family-law credentialing more broadly — firm attorneys have helped draft legislation that shaped the Texas Family Code and have chaired State Bar committees on child support, visitation, and pattern jury charges.

Dallas Family Law Attorney Practice Concentration

KoonsFuller practices exclusively in family law: complex divorce litigation, property division, asset tracing and valuation, child custody and visitation, child support, paternity, prenuptial and postnuptial agreements, adoption, gray divorce, and appellate work, along with litigation alternatives (collaborative law, mediation, arbitration). The firm markets a “high-net-worth and complex asset” specialization, drawing on in-house resources for business valuation and asset tracing in divorces involving closely held businesses, digital assets, and significant separate-versus-community property disputes.

Track Record

As a family law firm, KoonsFuller does not publish individual case settlement or verdict figures given the confidential nature of divorce and custody proceedings. Recognition above is peer-nomination and publication-based rather than case-outcome-based; past recognition does not guarantee future results.

Client Voice

Awesome Attorneys reviewed KoonsFuller’s presence on Lawyers.com/Martindale, Yelp, and Avvo. The firm’s Lawyers.com listing notes explicitly that “this firm has chosen not to display reviews” on that platform, and its Avvo profile carries Top Contributor and Client’s Choice badges — platform-awarded designations based on content contribution and review volume respectively, rather than a visible aggregate client-review score readers can independently assess. This is a genuine limitation on the review-based signal available for this profile: a firm of KoonsFuller’s size and market position would typically carry a substantial public review footprint, and its choice not to surface reviews on at least one major platform is worth noting rather than glossing over.

Beyond the Courtroom

KoonsFuller maintains an on-staff mental health professional to support clients through the emotional dimensions of divorce and custody transitions — an unusual structural feature for a law firm of any size. The firm reports 17 women attorneys firm-wide, 11 of them shareholders and 14 board certified, and has actively developed and promoted women into partnership (five attorneys promoted to partner in a single 2018 cohort, all five board certified). Firm attorneys have chaired the Dallas Bar Association’s family law sections and served on statewide committees shaping Texas family law procedure.

Recognition

The firm’s core credential is its concentration of TBLS Board Certified Family Law attorneys — reported at 20 to 25 depending on the publication date, and described by multiple sources as the largest such concentration of any Texas family law firm. This is a substantive, individually-earned credential per attorney, not a firm-level marketing designation, and is the basis for this profile’s use of “specialist” language for the firm’s board-certified attorneys specifically. The Martindale-Hubbell Elite award (2021) reflects a genuinely high, peer-reviewed ethical and competence standard (4.5+ average score) rather than a paid placement.

Texas Legal Backdrop

Texas is a community property state under Texas Family Code § 3.002; property acquired during marriage is presumed community property subject to “just and right” division, which is a major focus of KoonsFuller’s high-net-worth and business-owner divorce practice, since accurately characterizing separate versus community property often requires forensic accounting. A Texas divorce cannot be finalized until at least 60 days after filing under Family Code § 6.702, absent family violence. Child custody follows the conservatorship framework in Family Code Chapter 153, which presumes joint managing conservatorship serves a child’s best interest absent evidence of family violence or similar disqualifying conduct. Premarital and marital property agreements, another firm practice area, must be in writing and signed by both parties under Family Code Chapter 4 to be enforceable.

Awesome Attorneys Assessment

KoonsFuller’s scale and board-certification concentration are genuinely unmatched among the Dallas family law firms in this directory: a five-office footprint, a CEO reportedly ranked the state’s #1 Family Law Super Lawyer, and a reported 20-plus board-certified attorneys give this firm resources — in-house asset tracing, mental health support staff, appellate specialists — that smaller boutiques cannot easily replicate. For genuinely complex, high-asset, or multi-jurisdictional Texas divorces, that institutional depth is a real advantage.

The trade-off worth naming plainly: this profile could not independently verify a client-review-based reputation signal the way it could for smaller firms, since KoonsFuller does not display reviews on at least one major platform reviewed here. For a firm this size and this visible in the Texas family law bar, that is a notable gap in the public record rather than a red flag in itself — but prospective clients who weight independent review volume heavily should know it, and should ask directly for client references given the firm’s size and the number of attorneys who might handle a given case.

Methodology & Sourcing

This profile was compiled from KoonsFuller’s own website (koonsfuller.com, including its Attorneys and Disclaimer pages), the firm’s Yelp listings for its Dallas, Southlake, and Plano offices, its Lawyers.com/Martindale-Hubbell firm profile, D Magazine’s sponsored features on the firm, BCG Attorney Search’s firm ranking summary, and the firm’s LinkedIn company page. Statutory citations were checked against the Texas Family Code. No case results, credentials, honors, or quotes were invented; firm size and board-certification figures are reported as stated across the firm’s own materials, which vary slightly by publication date, and that variance is disclosed rather than resolved to a single number.

Publisher Disclosure & Independence Notice

Awesome Attorneys is an independent legal directory and editorial publication. This profile was not paid for, commissioned, or reviewed by KoonsFuller, P.C. prior to publication. Awesome Attorneys may in the future offer sponsored placements clearly labeled as such, but no payment of any kind determines inclusion in, or the content of, this editorial profile. This article is for informational purposes only, does not constitute legal advice, and does not create an attorney-client relationship between the reader and KoonsFuller or Awesome Attorneys.