Atty. Mark William Haefner

Atty. Mark William Haefner

Mark William Haefner is a lawyer practicing family, divorce & separation. Mark has been licensed for 21 years.

St. Louis St. Louis 21 yrs experience 21 year
Call (314) 944-5036 Book Appointment

Divorce & Separation & More Attorney · Serving St. Louis, MO · 21+ Years Experience

Profile Summary

About Mark William Haefner at a Glance

Mark William Haefner is a divorce and family law attorney based in St. Louis, Missouri. They have 21+ years of legal experience, licensed to practice since 2005. Admitted to practice in Kansas (2005) and Missouri (2006). Serves clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Mark William Haefner

  • Mark William Haefner is a lawyer practicing family, divorce & separation
  • Mark has been licensed for 21 years
  • Mark practices in St. Louis, MO

Practice Areas Explained

Mark William Haefner's Areas of Legal Practice

Each practice area below reflects the types of cases Mark William Haefner handles, with a practical overview of what that area of law involves and how it may apply to your situation in St. Louis.

Divorce in St. Louis

A divorce attorney guides you through property division, spousal support, custody, and the final decree — contested or uncontested.

Mark William Haefner is one of 50,071 divorce attorneys indexed nationally. Browse divorce attorneys in Missouri →

Family Law in St. Louis

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Mark William Haefner is one of 185,688 family law attorneys indexed nationally. Browse family law attorneys in Missouri →

Jurisdictional Context

Why Local Counsel Matters in St. Louis

Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in St. Louis are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Missouri courts without local counsel or pro hac vice admission.

St. Louis Courts and Legal Process

Choosing a St. Louis-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common Questions About Mark William Haefner

Where is Mark William Haefner's law office located?
Mark William Haefner's law practice is located in St. Louis, Missouri. You can contact the office directly through this profile page.
What practice areas does Mark William Haefner handle?
Mark William Haefner focuses on divorce, family law. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Mark William Haefner practiced law?
Mark William Haefner has 21+ years of legal experience and has been licensed since 2005.
How can I contact Mark William Haefner for a consultation?
You can contact Mark William Haefner directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Professional Profile

Why Clients in St. Louis Choose Mark William Haefner

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mark William Haefner's practice in the field of divorce and family law.

Decade-Tested Legal Experience

Mark William Haefner brings 21+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Multi-State Bar Admission

Licensed in Kansas and Missouri, Mark William Haefner can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Broad Practice Area Coverage

Covering divorce and family law, Mark William Haefner can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in St. Louis

A St. Louis-based practice means Mark William Haefner attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Mark William Haefner Handles in St. Louis

Below is a representative sample of the types of matters Mark William Haefner has experience with under Missouri law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Divorce and property division
Family Law
Child custody and support
Family Law
Spousal support (alimony)
Family Law
Prenuptial agreements
Family Law

This list is illustrative, not exhaustive. Contact Mark William Haefner directly to discuss the specifics of your situation.

Search Reference

How People Find Mark William Haefner Online

Prospective clients searching for legal help in St. Louis commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Mark William Haefner.

Mark William Haefner attorney Mark William Haefner lawyer Mark William Haefner St. Louis Mark William Haefner Missouri Mark William Haefner reviews Mark William Haefner contact divorce attorney in St. Louis divorce lawyer St. Louis best divorce attorney St. Louis top rated divorce lawyer near me divorce attorney Missouri find a lawyer near me how to hire an attorney

If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Mark William Haefner directly.

Mark William Haefner's Practice Areas & Specializations

Bar Admissions & Licensed Jurisdictions

Kansas
Admitted: 2005
Missouri
Admitted: 2006

Client Reviews & Ratings — Mark William Haefner

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.