Contested Divorce.
Post Divorce.
Real Trial Experience.
Experienced Florida trial lawyers for clients facing high conflict cases, complex financial issues and custody disputes.
Family law disputes demand more than just legal knowledge.
They require strategic thinking, courtroom experience, and an unwavering commitment to protecting your interests. At JJ Family Law, we’ve spent over 30 years navigating Florida’s most complex family law matters. From custody disputes to high-net-worth asset division divorces that demand forensic expertise, we bring aggressive litigation experience and sophisticated legal strategies to every case we handle.
When the stakes are high, you need lawyers who are prepared to fight.
About JJ Family Law
30+ Years of Family Law Excellence in South Florida
Jonathan Jonasz has been practicing family law exclusively since his admission to the Florida Bar in 1994. Based in Coral Gables, our boutique family law firm specializes in representing clients during one of the most difficult and emotional times of their lives in Miami-Dade County and beyond.
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We don’t believe in one-size-fits-all solutions. Instead, we combine decades of trial experience with personalized legal strategy to achieve the outcomes our clients deserve.
Our practice is built on three core principles: aggressive preparation, sophisticated legal strategy, and meticulous client communication. We handle complex divorces involving forensic accounting, custody disputes requiring psychological analysis, and emergencies demanding immediate action.
Whether your case involves high-networth asset division, parental alienation concerns, or cases requiring both family law and civil litigation, we have the knowledge and experience to guide you through it.
We understand that family law matters are emotionally charged and financially significant. We won’t promise you a fairytale ending or suggest that every case concludes perfectly.
What we will promise is skilled legal representation, transparent communication, and lawyers who will roll up their sleeves and get down to business when it matters most. Your case will be handled with the attention and expertise it deserves.
Our Practice Areas
Comprehensive Family Law Representation for Complex Matters. Our Expertise spans the full spectrum of family law.
Divorce & Dissolution
Divorce Representation & Post-Divorce Modifications: We represent clients in divorce and post-divorce matters involving high-net-worth estates, complex asset division, equitable distribution disputes, alimony, business valuations, and enforcement proceedings, delivering strategic and assertive advocacy at every stage of the process.
Child Custody & Timesharing
Custody Disputes, Parental Alienation & Timesharing Arrangements: We represent parents in contested custody and timesharing disputes, including relocation and parental alienation matters, blending strategic legal advocacy with a practical understanding of all child-related matters that take place in custody-type proceedings. When appropriate, we engage with other qualified professionals, including mental health experts, to assist in the preparation of our clients’ case focused on protecting parental rights and the child’s best interests.
Paternity & Child Support
Paternity Actions, Establishment & Modification of Child Support: Whether establishing paternity, determining child support obligations, or seeking modification of existing support orders, we advocate for our clients’ parental rights and financial interests. When necessary, we utilize forensic accounting and detailed financial analysis to ensure accurate income determinations and support calculations.
Complex Financial Matters
High-NetWorth Divorce, Forensic Accounting & Asset Division: Our firm handles complex financial matters involving business valuations, forensic accounting, dissipation of marital assets, fraud, and other important economic considerations in high-net-worth marriages. We work closely with forensic accountants, valuation experts and financial specialists when the case requires expert opinions.
Domestic Violence Injunctions
Domestic Violence Allegations: At JJ Family Law, we take allegations of domestic violence very seriously and recognize both the importance and long-term consequences that the granting of an injunction may have on both parties. We have many years of experience advocating for our clients, either for the establishment of an injunction in order to protect their safety or to defend against allegations that lack merit and/or may have been filed to gain some unfair advantage in a companion case.
Emergencies & Urgent Situations
Emergency Injunctions, Emergency Custody Orders, Urgent Relief: Family law emergencies require immediate action. We handle emergency injunctions, emergency custody orders, urgent visitation restrictions, and other time-sensitive relief matters, responding quickly to protect our clients’ rights.
Relocation Of The Minor Child
Relocation in Modern Family Law: When one party seeks to relocate with the minor child more than 50 miles away from their current residence, Florida courts require a Petition to Relocate.
Prenuptial & Postnuptial Agreements
Prenuptial & Postnuptial Agreements: At JJ Family Law, we draft complex prenuptial and postnuptial agreements for individuals with high-net-worth significant assets or other unique circumstances, who desire to limit and resolve their exposure in the event of a divorce. We represent individuals in family businesses who desire to protect their family’s assets and reputation in the event of a divorce. Often, we are requested to review and negotiate prenuptial and postnuptial agreements in order to determine their validity and enforceability.
Our Multidisciplinary Approach
At JJ Family Law We Leverage Our Experience in Family Law by Utilizing Experts to Assist in The Presentation of Your Case.
High conflict and complex family law matters may require more than just legal expertise. Our firm works with a carefully selected network of specialized professionals to build the strongest possible case for our clients.
For asset tracing, lifestyle analysis, determining marital dissipation and income calculations use for child support, alimony and attorneys fees.
For custody evaluations and high conflict case analysis.
To manage ongoing custody disputes and co-parenting conflicts.
To represent children’s best interests in contested cases
For specialized analysis when cases demand it.
When employability and earnings.
Why Choose JJ Family Law
"The Difference Experience Makes"
Aggressive Litigation Experience
We’re Trial Lawyers First: We don’t shy away from contested litigation. When push comes to shove, we’re prepared to fight for your interests in court.
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Our practice is built on courtroom experience, not just negotiation skills. This experience becomes invaluable in high conflict cases.
Sophisticated Case Management
Complex Cases Are Our Specialty: We’ve spent three decades handling the most complex family law matters.
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High-networth divorces, international custody disputes, cases involving forensic accounting, and matters requiring psychological expertise. Strategic Communication deserves.
Frequent Updates, Complete Transparency: You’ll receive frequent email updates with copies of all disclosures, documents, and correspondence.
We believe informed clients make better decisions. You’ll understand your case, your options, and the strategy we’re pursuing.
Boutique Personalized Approach
We work closely with each client at all hours and days of the week. We understand the anxiety, expense, and demands that take place in a family law proceeding.
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Our firm is designed to make sure that clients feel they are well represented and have constant contact and access to the lawyers and staff at JJ Family Law. Every client is kept well informed and made part of the decision-making process to ensure that cases are litigated in a manner that meets our clients’ expectations.
Realistic Expectations
Honest Assessment, No False Promises: We won’t tell you that your case will end perfectly or that we’ll solve all your problems. What we will do is provide an honest assessment of your situation, realistic expectations about outcomes, and skilled legal strategy to achieve the best possible result under the circumstances.
Video Testimonials
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Practice Philosophy
We balance aggressive representation with strategic thinking.
While we’re prepared for courtroom battles when necessary, we also recognize that not every case needs to go to trial. Our philosophy is to pursue litigation avoidance when it protects our clients’ interests and achieves their goals but never at the cost of compromising their rights or their child’s best interest.
Family law matters are often difficult because they involve both legal and personal dimensions. Your financial security, parental rights, and family stability are at stake. That’s why we approach every matter with the seriousness it deserves and the strategic thinking that distinguishes skilled advocacy from mere legal service.
Our Procces
What to expect when you start working with JJ Family Law.
Initial Consultation
Understanding Your Family Law Situation: During your initial consultation, we'll listen to your situation, ask the right questions, and provide an honest assessment of your case. We'll explain the law and possible outcomes, and the timeline involved. We make sure to explain billing practices and how our retainer agreement is structured.
Case Strategy Development
Creating a Strategy That Works: Once retained, we'll develop a comprehensive case strategy based on your specific circumstances. We'll identify the key issues that matter most, determine what expert support maybe needed, and outline our approach to achieving your goals.
Discovery & Investigation
Obtaining the Evidence: We'll conduct thorough discovery, obtain necessary documents, and work with any required experts (forensic accountants, psychologists, valuators). You'll receive regular updates on what we're learning and how it affects your case.
Settlement Negotiation and Trial Preparation
Active Representation: We'll forcefully negotiate on your behalf if settlement is possible. However from our first meeting until your case is completed our attorneys are actively preparing your case in the event hearings and trial take place.
Complete Transparency Throughout Your Case
Communication Philosophy.
We believe informed clients make better decisions.
That’s why we provide:
Regular communication with copies of all documents, disclosures, and correspondence.
We explain legal concepts in plain language so you understand what’s happening in your case.
Direct access to your attorney for questions and strategic discussions.
Your input matters. We’ll explain options and discuss strategy, but we won’t leave you guessing about case direction.
Reviews From Our Clients
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Ready to Discuss Your Family Law Matters?
If you’re facing a family law challenge, we’re ready to listen. Contact us to schedule a strategic consultation. We’ll discuss your situation, explain your options, and help you understand what comes next.