Logan County Annulment Attorneys

Reviewed by Stephanie Green · Managing Partner & Co-Founder · Last updated June 11, 2026

Logan County, Ohio · Bellefontaine

An annulment (R.C. 3105.31) is a court declaration that a marriage was never valid — for grounds such as bigamy, underage marriage without consent, fraud, or incapacity — as opposed to ending a valid marriage. In Logan County it is filed in the Domestic Relations section of the Family Court, and the grounds are narrow.

Hire Gavvl for your Logan County annulment case

Flat-fee and full-representation options: we handle the filings, the Logan County local forms, the court strategy, and the hearings — and you know the price before we start.

Start with a $25 consultation and talk through your options with an Ohio family-law attorney before you commit to anything. Get started online or see payment plans & financing.

How do I get an annulment in Logan County, Ohio?

File a Complaint for Annulment (R.C. 3105.31) in the Domestic Relations section and prove a statutory ground — bigamy (an existing prior marriage), underage marriage without consent, fraud, or incapacity. An annulment treats the marriage as if it was never validly entered; it is not available simply because a marriage was short. The original-complaint deposit is $400, and an Affidavit of Indigency can waive it. With children, add the parenting and child-support affidavits. Annulment grounds are narrow and fact-specific, so most filers work with an attorney. Confirm the current deposit with the DR Department at (937) 292-4043.

Put Gavvl Law on your Logan County annulment

An annulment under R.C. 3105.31 asks the Logan County Family Court to declare a marriage void or voidable from the start — for a narrow set of grounds like bigamy, underage marriage without consent, fraud, duress, or incapacity — rather than ending a valid marriage. It is filed in the Domestic Relations section with a $400 original-complaint deposit, and because the grounds are fact-specific most filers work with an attorney. Gavvl Law evaluates whether your situation fits a statutory ground, drafts the Complaint for Annulment with the financial affidavits, and presents the proof at the hearing. Flat fee where the ground is clear, full representation when it is contested.

We test your ground before you file. Annulment is not available just because a marriage was short — the grounds under R.C. 3105.31 are bigamy, underage without consent, fraud, duress, or incapacity — so we assess whether your facts fit one before you commit to the case.
The complaint and affidavits done right. We draft the Complaint for Annulment with the Affidavit of Income & Expenses and Affidavit of Property, and add the parenting and child-support affidavits when there are minor children of the marriage.
Civil, not religious, and priced up front. A civil annulment is a court judgment that the marriage was never valid — separate from any religious annulment — filed with a $400 deposit that an Affidavit of Indigency can waive, and we set a flat fee agreed up front with payment plans available.

We file annulments in the Domestic Relations section of the Family Court at 101 S. Main Street in Bellefontaine, coordinating with the Domestic Relations Department at (937) 292-4043 on the $400 deposit and the narrow statutory grounds the court applies.

Flat-fee options

Flat-fee limited scope: we draft and file your complaint for annulment to have the marriage declared void. You appear at any hearings yourself.

Complaint for annulment: $1,750

Prefer full representation? An Ohio attorney can carry the entire case on a $3,500 retainer.

Split any flat fee with Gavvl Direct — our in-house plan at 19% APR, $500 minimum — on a 60%-down schedule of 18 weekly, 8 bi-weekly, or 4 monthly payments, or full financing where work begins once 60% is paid. Affirm, Klarna, and PayPal Pay Later are also available through LawPay.

Start your annulment case or see payment plans & financing.

Ohio Divorce by the Numbers

6 months Ohio residency required before you can file Source: Ohio Revised Code § 3105.03
90 days Residency in the county of filing (venue) Source: Ohio Civ. R. 3
30–90 days Typical time to finalize an uncontested dissolution Source: Ohio Revised Code § 3105.64
1 year Living separate and apart that qualifies as no-fault grounds Source: Ohio Revised Code § 3105.01

Compare Your Options for Ending a Marriage in Ohio

Path	Ends the marriage?	Agreement required?	Best when
Dissolution	Yes	Yes — on every term before filing	Both spouses agree on everything and want the fastest, lowest-cost path
Divorce (contested)	Yes	No	Spouses disagree on property, support, or parenting and need a judge to decide
Divorce (uncontested / default)	Yes	No	One spouse will not respond or cannot be located
Legal separation	No — you stay married	Optional	You need court orders but must stay married (religion, insurance, or benefits)
Annulment	Treated as never valid	No	The marriage was never legally valid (fraud, bigamy, underage, or incapacity)

Where to File: Logan County Court of Common Pleas, Family Court Division

101 S. Main Street, Bellefontaine, OH 43311
Phone: (937) 292-4043
Hours: Monday–Friday 8:30 a.m.–4:30 p.m.
Website: Court website

Juvenile Branch (Never-Married Parents)

Logan County Court of Common Pleas, Family Court Division — Juvenile
101 S. Main Street, Bellefontaine, OH 43311
Phone: (937) 599-7245
Hours: Monday–Friday 8:30 a.m.–4:30 p.m.

Annulment is the right path if…

Your marriage falls within an R.C. 3105.31 ground (bigamy, underage without consent, fraud, or incapacity).
You want the court to declare the marriage void or voidable, not to end a valid marriage.
A spouse has been an Ohio resident for at least the last 6 months and Logan County is the right venue.
You can pay the $400 deposit (or file an Affidavit of Indigency to waive it).

Filing Fees

Annulment original-complaint deposit $400 · an Affidavit of Indigency can waive the deposit. Court fees and deposits change — confirm the current amount with the Logan County Clerk of Courts before filing: Domestic Relations Department (937) 292-4043 or the Family Court main line (937) 599-7249 (Juvenile Department (937) 599-7245 for never-married-parent cases).

Forms & Filing Packets

File for annulment — $400 deposit (Affidavit of Indigency can waive it)

File a Complaint for Annulment in the Domestic Relations section, asserting the statutory ground, with the financial affidavits. The court holds a hearing and, if a ground is proven, declares the marriage void or voidable.

Complaint for Annulment (R.C. 3105.31) — Opens an annulment case asking the court to declare the marriage void or voidable on a statutory ground (underage without consent, bigamy, fraud, or incapacity). Usually attorney-drafted; file the financial and (with children) parenting affidavits with it.
Affidavit of Income & Expenses (Ohio SC Affidavit 1) — Income, expenses, and basic financial information. Each party files their own. Must be notarized.
Affidavit of Property (Ohio SC Affidavit 2) — Lists every asset and debt. Required at filing.
Affidavit of Indigency w/ Guidelines (Logan County, 3-23-21) — Asks the court to waive the filing deposit if you cannot afford it (Civ.R. 3(E)). Note: even in an approved indigent case, Logan County still requires service by publication to be paid directly to the Daily Court Reporter.

How to File Annulment in Logan County

Confirm a ground. Make sure your situation fits an R.C. 3105.31 ground — bigamy, underage without consent, fraud, or incapacity.
Prepare the complaint. Complete the Complaint for Annulment with the Affidavit of Income & Expenses and Affidavit of Property; with children, add the parenting and support affidavits.
File and pay. File with the Clerk in the Domestic Relations section and pay the $400 deposit (or file an Affidavit of Indigency to waive it).
Attend the hearing. Present evidence of the ground; if proven, the court declares the marriage void or voidable.

Logan County Practice Notes

Grounds are narrow. Annulment under R.C. 3105.31 is for marriages that were void or voidable from the start (bigamy, underage without consent, fraud, duress, or incapacity). It is not available just because a marriage was short, and the grounds are fact-specific.
A civil annulment is not a religious annulment. A civil annulment is a court judgment that the marriage was never legally valid — separate from any religious annulment. Because the grounds are narrow, annulments are filed in the Domestic Relations section and are relatively rare.

Frequently Asked Questions

What are the grounds for annulment in Logan County?: An annulment under R.C. 3105.31 declares that a marriage was void or voidable from the start. The recognized grounds are an existing prior marriage (bigamy), underage marriage without consent, fraud, duress, or mental incapacity. An annulment treats the marriage as if it never validly existed — it is not available simply because the marriage was short. Annulments are filed in the Domestic Relations section and are relatively rare.
How much does it cost to file a family law case in Logan County?: The original-complaint deposit for a divorce, dissolution, legal separation, or annulment is $400. A Domestic Relations motion or pleading to re-open a case (custody, visitation, or contempt) is $150 under the DR Cost Deposits Schedule A. A DVCPO petition has no filing fee. Juvenile filing deposits are not on a posted schedule — confirm them with the Juvenile Department. Service by publication is paid directly to the Daily Court Reporter, even in an approved indigent case. An Affidavit of Indigency can waive the deposit. Confirm current amounts with the DR Department at (937) 292-4043.
What is the residency requirement to file in Logan County?: To file for divorce, dissolution, legal separation, or annulment in Ohio, a spouse must have been an Ohio resident for at least 6 months before filing and must meet Logan County venue. Logan County is the right county when you or your spouse live here.

Free Local Resources in Logan County

Logan County Court of Common Pleas — Family Court Division. The single combined Family Court for divorce, dissolution, legal separation, annulment, post-decree matters, and protection orders (Domestic Relations), plus never-married-parent custody/support, non-parent custody, and CPS (Juvenile), and adoption (Probate), at 101 S. Main Street, Bellefontaine. Family Court main line (937) 599-7249; Domestic Relations (937) 292-4043; Juvenile (937) 599-7245; Probate (937) 599-7252. DR/civil documents can be e-filed by email before 4:15 p.m. Court information and rules are at https://www.logancountyohio.gov/common-pleas-court---family-court.html.
Logan County Domestic Relations Forms. Logan County uses the Ohio Supreme Court standardized DR/Juvenile forms, plus a few local forms (the Visitation Guidelines, the Application for Child Support Services, and the Affidavit of Indigency). The DR forms page is at https://www.logancountyohio.gov/domestic-relations-forms.html.
Logan County Child Support Enforcement Agency (CSEA). Any case involving children requires the Application for Child Support Services (Title IV-D). The CSEA sets support under Ohio's guidelines, collects by income withholding, and can review existing orders. Confirm contact details with the Family Court at (937) 599-7249.
CASA of Logan County. Provides trained volunteer Guardian ad Litem advocates for children in contested cases. Learn more at https://www.casaoflogancounty.org/.
Ohio Child Support Calculator. Run the official Ohio 2024 Income Shares child-support worksheet at https://ohiochildsupportcalculator.ohio.gov/ before any case that sets or changes support.

Related to your annulment case

Spousal Support — Pursue or respond to alimony requests during and after divorce.
Paternity & Custody — Establish parentage and build a parenting plan that protects your children.
Child Support — Calculate, establish, or modify support under Ohio's guidelines.

Related guides

In-depth, attorney-written guides on annulment and related Ohio family law topics.

Divorce vs. Dissolution in Ohio: Which Path Is Right for You? — Divorce and dissolution both end an Ohio marriage, but they work very differently. Dissolution is a no-fault, agreed process; divorce is a lawsuit for couples who can't agree. Here's how to choose.
How to File for Divorce in Ohio: A Step-by-Step Guide — Filing for divorce in Ohio follows a defined path: confirm residency, choose your grounds, file the complaint, serve your spouse, and work toward temporary orders and a final decree. Here is how each step works.

More Logan County family-law resources

Ohio Annulment guide — Statewide overview of annulment in Ohio.
Dayton family law — Local attorneys and courts serving the Dayton metro.
Logan County family law guide — Court info, local filing notes, FAQs, and the downloadable Logan County guide.
Meet Stephanie Green — Managing Partner & Co-Founder at Gavvl Law.
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Call (844) 694-2885 or email support@gavvl.com.