Maryland vs DC Guardianship Laws: Key Differences for DMV Families

The DMV Problem

Living in the DC metro area means navigating three jurisdictions with three distinct legal systems for adult guardianship and decision-making support. Maryland, DC, and Virginia each have their own statutes, their own forms, their own execution requirements, and their own courts.

This matters because the most common search results for "guardianship for disabled adult" in the DMV region return content from cross-border law firms and advocacy organizations that generalize across all three jurisdictions. Those generalizations can create serious legal problems. An SDMA executed under Maryland rules won't hold up in DC. A Virginia guardianship form filed with the DC Probate Division will be rejected. A DC Health Care POA executed without the required two witnesses is invalid even though Virginia's requirements are different.

Supported Decision-Making: Three Different Laws

District of Columbia — SDMAs are governed by the Disability Services Reform Amendment Act of 2018 (D.C. Law 22-93, codified at D.C. Code §§ 7-2131 to 7-2134). The agreement must be in writing, signed by the principal and all supporters, and attested by either two adult witnesses or a notary public. DC's official form, developed by DDS and Quality Trust, is designed for plain-language completion.

Maryland — Maryland's SDM statute, effective October 1, 2022, is codified under the Estates and Trusts article of the Maryland Code. Maryland explicitly recognizes both written and unwritten (oral) supported decision-making arrangements. A DC parent relying on a Maryland-style oral arrangement has no legal standing in a DC hospital, bank, or government office. A D.C. SDMA is governed by D.C. law; using it in Maryland requires checking Maryland's separate statutory requirements.

Virginia — Virginia's SDM system is significantly more bureaucratic than DC's. The state-approved model template runs 23 pages, compared to DC's concise statutory form. Virginia also has different supporter qualification criteria and execution requirements.

Court Process Differences

Where you file — DC guardianship cases go to the Probate Division of DC Superior Court (Moultrie Courthouse). Maryland cases are filed in the Circuit Court for the county where the individual resides. Virginia uses Circuit Courts as well, but under a different statutory framework.

What it's called — DC calls it an "intervention proceeding" (INT/IDD case type). Maryland and Virginia use more traditional "guardianship petition" terminology. If you're searching for DC-specific forms and procedures, you need to know the DC terminology.

Filing fees — DC charges no filing fee for a guardianship-of-the-person-only petition and $45 for petitions that include conservatorship. Maryland and Virginia fee structures are entirely different.

Post-appointment requirements — DC's mandatory deadlines are among the most rigorous in the region: MPD background check within 60 days, guardianship plan within 90 days, FBI fingerprints within 180 days, and semi-annual guardian reports. Maryland and Virginia have their own reporting calendars.

Healthcare Surrogacy: Different Default Hierarchies

DC's Health Care Decisions Act includes a distinctive feature that Maryland and Virginia lack: a rebuttable presumption in the surrogate hierarchy. Under D.C. Code § 21-2210, a person lower on the priority list can be selected over a higher-ranked relative by demonstrating better knowledge of the patient's wishes. In Maryland and Virginia, the statutory hierarchy is generally rigid — the highest-available person in the order has authority.

This flexibility is practically significant for families where the most involved caregiver isn't the highest-ranked person in the statutory order.

Educational Rights Transfer: DC's Unique Pathway

DC's OSSE Educational Representative appointment — the administrative process requiring two professional certifications of inability to consent — doesn't exist in Maryland or Virginia. Cross-border special education guides that describe the transfer of rights at age 18 typically omit this DC-specific mechanism entirely, leaving DC families unaware that they can maintain IEP decision-making authority without a court order.

The Cross-Border Danger for DMV Families

If your disabled adult child lives in DC, all legal instruments must comply with DC law — regardless of whether your attorney is based in Maryland, your doctor practices in Virginia, or your child's school is a DC charter school that contracts with a Maryland-based service provider.

The specific traps:

• A financial POA without DC notarization is invalid in DC, even if it complies with Maryland or Virginia requirements
• A Health Care POA without two DC-compliant witnesses is invalid, even if it would satisfy Virginia's execution rules
• An oral SDM arrangement recognized in Maryland has no legal effect in DC
• DC Probate Division forms are not interchangeable with Maryland Circuit Court forms

The DC Adult Guardianship & Alternatives Guide is built exclusively around DC law — D.C. Code, DC Superior Court procedures, OSSE regulations, and DDS policies. Every form reference, every execution requirement, and every deadline is verified against the District's own statutes, not generalized DMV guidance.

See more District of Columbia guides →