Alexander Sendlak
Managing Partner · Family Law
Alexander Sendlak helps families across DuPage the surrounding counties through divorce, custody, and support — a former DuPage County prosecutor who has tried hundreds of cases and now puts that courtroom experience to work for his clients.
20
YEARS PRACTICING
100s
CASES TRIED
4+ ⭐
ON GOOGLE, AVVO AND MORE
5
COUNTIED SERVED
Alexander Sendlak is a family law attorney and Managing Partner at Dolci Weiland & Sendlak in Oakbrook Terrace, Illinois. He focuses his practice on divorce, child custody, child support, spousal maintenance, and parental rights for clients throughout DuPage, Will, Kane, Kendall, and Cook counties.
Alexander brings a perspective most family lawyers don’t have: he spent nearly seven years as a prosecutor at the DuPage County State’s Attorney’s Office before turning to family law in 2014. That trial background means he reads a courtroom quickly, prepares every case as if it will be tried, and negotiates from a position of genuine strength — while keeping the focus on what matters most to his clients, their children and their financial future.
How Alexander helps Illinois residents
Contested and uncontested divorce, asset division, alimony and post-decree modifications.
Parenting time, allocation of responsibilities and custody modifications.
Support orders, maintenance, and adjustments after a change in circumstances.
Establishing paternity, guardianship, and relocation (removal) cases.
Marital and non-marital property classification, division of assets and debt on divorce, maintenance (alimony) including waiver, disposition of property on death, business interests, retirement accounts, inheritances, and choice-of-law provisions.
Division of marital property and classification of separate property, including real estate, investment accounts, vehicles, and personal possessions.
Estate and legacy planning, wills, trusts, living trusts and inheritance disputes.
Background & experience
2006
Began practicing law
Started his legal career in personal injury litigation, learning the mechanics of building and trying a case from the ground up.
2007 – 2014 · DuPage County State’s Attorney’s Office
Career prosecutor
For nearly seven years, Alexander prosecuted cases ranging from traffic offenses to first-degree murder — taking hundreds to trial, including DUIs and felony drug offenses.
2014 – Present
Family law & Managing Partner
Brought his courtroom skills to family law, litigating divorce, legal separation, child support, maintenance, and removal — and now leads the firm as Managing Partner.
Recent results, settlements or verdicts
CONTESTED CUSTODY
Primary parenting time secured
Protected a client’s role as the children’s primary caregiver after a contested dispute.
HIGH-ASSET DIVORCE
Equitable division achieved
Negotiated a fair split of marital property, business interests, and retirement accounts.
POST-DECREE
Support order modified
Adjusted a support obligation after a substantial change in the client’s circumstances.
RELOCATION
Removal granted
Won approval for a parent to relocate out of state with their child.
* Results described are illustrative of matters the firm handles. Prior results do not guarantee a similar outcome in any future case.
What my clients say
I had been through two other lawyers and my divorce kept dragging on and my legal bills kept growing. I am very grateful that my friend recommended me to Dolci Weiland & Sendlak . I met with Dominick and Alex and immediately felt like I had found the right lawyers. They seemed knowledgeable and concerned about my case. They resolved it in an expeditious manner. They were much more responsive to my phone calls and emails than my previous lawyers. Good guys. Fair and efficient. I highly recommend them.
I was going through a rough divorce with a previous attorney who I was just not feeling comfortable with. I met with Alex Sendlak and his partner dominick Dolci and I immediately knew I wanted to hire these guys as my lawyers. They made me feel like everything was under control and would be fine. It turned out they were right. I gained custody of my kids and they made sure I received a fair settlement from my ex. Mostly I just feel relieved and happy to be divorced and know that I and my kids will be just fine. Thank you guys!
Anonymous
Divorce
Thank god i met alex and his team at Dolci and Weiland when my husband left our family i was very concerned what was going to happen to me and my kids How wouldi i support them? What was going to happen? It was overwhelming As soon as i met alex and hus partner dominick i i immediately felt like i was going to be ok they explained everything that was going to happen and reassured me that we would come thru this iok six months later my divorc was comple what they said was true and i am quite happy and relieved all the hooror storirs you hear about divorce kawyets did nit apply to alex he was kind to me. He always took or retuned my calls He obviously knew what he was doing as a lawyer i never doubted that. But the part i was most impressed with was the genuine warmth and concern exhibited by everyone at Dolci and Weiland i know consider these people my friends! From the support staff to the partners,these folks were genuine and really seemed to have my best interests at heart i am very grateful to have met them when i did. Highly, highly recomeded!!
Kathleen
Divorce
In my experience Alex is a very good divorce attorney. Always professional, always called after court, and ultimately save me a lot of money in my divorce. I would recommend Alex and his law firm to anyone facing a complicated divorce.
Anonymous
Divorce
I had an oportunity to observe Alex’ s condunct in and out of courtroomon on several ocassions. After being reminded of professional standards, he showed character (stopped using half truths in favor of his clients) and basic respect to the other, self represented, party (better communication, avoiding further representation in another cases involving the same lirigants) . It is acknowledged and appreciated. Attorneys with character are what we need to see for real social justice. Less privileges, more integrity and honesty.
Anonymous
Divorce
Education & credentials
ADMISSIONS
- ▸Admitted to the Illinois Bar, 2006
- ▸U.S. District Court, Northern District of Illinois
- ▸Former Assistant State’s Attorney, DuPage County (2007–2014)
🛡️In good standing · No public disciplinary history with the ARDCxt
EDUCATION
- ▸J.D. — Northern Illinois University College of Law
- ▸B.S. in Business — Miami University, Oxford, OH
AWARDS & RECOGNITION
★ Top 100 Trial Lawyers ★ National Advocates ★ Lead Counsel Rated ★ Avvo Clients’ Choice ★ 40 Under 40
In the profession
🏛️
Memberships
- Illinois State Bar Association
- DuPage County Bar Association
- American Academy of Matrimonial Lawyers (AAML)
🎓
Speaking & writing
- CLE presenter on Illinois custody & parenting time
- Author, firm family-law resource library
- Contributor on post-decree modification topics
📁
Trial experience
- Hundreds of cases tried as a prosecutor
- Charges from traffic offenses to first-degree murder
- DUI and felony drug offenses to verdict
Insights by Alexander Sendlak
8 Ways to Prepare for the Financial Burden of Divorce
June 12, 2026
If divorce is starting to look like the road ahead, the financial side of it can feel like the most overwhelming part. Making the decision is hard enough. Then come the legal questions, the asset questions, and the worry about how you will pay for two households on the income that used to support one.
Are Your Divorce Records Accessible to the Public in Illinois?
May 22, 2026
Yes, divorce records are public by default in Illinois, meaning anyone can look up your case file and read your court filings. However, you can legally shield your sensitive personal and financial data from public view through automated redaction rules, formal requests to seal files, or by utilizing strategic out-of-court settlement methods. When you are
Parenting Plans and Schedules
February 20, 2026
We all want to ensure our children are protected during a divorce, separation, or breakup. Illinois courts share this priority, working to ensure that parents receive quality time with their children because both parents, absent a valid reason like serious abuse, should be able to develop strong bonds with their children. When it comes to
Family Law Attorney for Visitation Rights in Illinois
January 31, 2026
A parent who lacks physical custody of their child may still have visitation rights in Illinois. Sometimes, other family members, like grandparents or step-parents, can also seek and obtain visitation rights. Having this right, however, is not an automatic right where you can visit a child whenever you want simply because you are a parent
Talk to Alexander Sendlak today
Whether you’re facing divorce, a custody dispute, or a support disagreement, the first conversation is free — and it’s the fastest way to understand your options.
Or call us directly: (630) 261-9098