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
Do You Need to Legally Separate Before Divorce in Illinois?
July 17, 2019
Thinking of a divorce is distressing and can get complicated pretty quickly. Knowing how to start the process – emotionally, mentally, and legally – adds to the stress. One thing that is asked quite often these days is if a legal separation is required prior to filing for divorce. Many states require some kind of waiting period
4 Winning Strategies to Financially Negotiate Your Illinois Divorce
April 18, 2019
How Can I Protect My Financial Interests in a DuPage County, Illinois Divorce? There comes a time in any divorce case when either party will have to make one crucial decision; they will have to decide what they want to fight for, and what they are willing to let go. By that, we mean the
Who Can Legally Claim a Child as A Dependent When Filing Taxes in Illinois?
March 28, 2019
Financial concerns and child custody are oftentimes two of the biggest sources of frustration and contention in an Illinois divorce. The frustration can easily become twofold when the two are combined and tax season rolls around. In a non-divorced household, parents are able to claim their children as depends while filing taxes, and share the
Can I Modify My Illinois Child Support Agreement?
February 7, 2019
Does a Change in Illinois Child Support Laws Count as a Substantial Change in Conditions to Modify Child Support? In 2016, Illinois introduced a new model of calculating child support, called the Income Shares Model. This model makes Illinois the 40th state to adopt an Income Shares model, and creates a more comprehensive and equitable method
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