Six estate situations that reliably outgrow a do-it-yourself probate filing, plus the small-estate case where hiring an attorney adds cost without adding much.
Most estates that go through probate are procedural. Someone dies with a house, a checking account, a car and a modest brokerage balance, the will names an executor, the heirs agree, and the court's job is mainly to confirm authority, watch the creditor window run, and sign off on a distribution that nobody disputes. A careful person can file that case alone in many counties. The question worth answering early, before the first filing sets a path, is whether the estate in front of you belongs to that category or to one of the handful that reliably does not.
When someone contests the will, or says they might
A contest converts an administrative file into litigation, with pleadings, discovery, depositions of the witnesses to the signing, and often an expert on capacity or undue influence. The signals show up before the formal objection does: a will signed weeks before death, a beneficiary who drove the decedent to the attorney's office, a child cut out without explanation, a prior will circulating in the family. What a careful reader checks is the deadline. Most states give interested parties a short window, measured from the notice of probate, to object, and that window governs how fast you need counsel.
An heir nobody can find
Courts will not distribute to a name on a page. If a sibling has been out of contact for twenty years, or a cousin's share passes to children whose surnames nobody knows, the estate needs a documented search, an affidavit of diligent inquiry, service by publication, and in some states a guardian ad litem appointed to represent the unknown person's interest. The check here is procedural rather than emotional: read what your state requires as proof of effort, because a distribution made without satisfying it can be reopened, and the personal representative is the one holding that exposure.
Real property in a second state, or a business interest
Land is administered where it sits. A vacation cabin two states away usually requires an ancillary probate in that county, filed under that state's rules, frequently with a local attorney as a practical requirement, and the timelines rarely line up with the primary case. A business interest is the other version of the same problem: an operating company, a rental LLC, or a partnership share needs valuation, an agreement reviewed for transfer restrictions or a buy-sell clause, and continuity of management while the court process runs. Check the operating agreement before you check anything else.
Debts larger than the assets
An insolvent estate is not a smaller version of a solvent one. State law sets a payment priority: administrative costs, funeral expenses, taxes, secured claims, then general creditors, in an order that varies and that the personal representative is personally liable for getting wrong. Paying a sympathetic creditor ahead of a statutory one is the classic and expensive mistake. There is also a tax layer, since the Internal Revenue Service is responsible for the estate's final individual return and any fiduciary income tax return the administration generates, and those obligations sit high in the priority scheme.
A representative who lives far from the court
Distance is underrated as a cost driver. Some counties still require wet-ink filings, in-person hearings, or a resident agent for a nonresident representative, and a few require a bond that a local fiduciary would be excused from. Add flights, hotel nights and time off work to secure a vacant house, meet an appraiser, clear personal property and close accounts, and hiring counsel in the county often costs less than administering from a thousand miles away. Check the local rules page for the specific court before assuming remote administration is possible.
The case that needs less, not more
The opposite situation is common and worth naming. Nearly every state has a small-estate path: an affidavit collecting personal property below a dollar ceiling, often after a short waiting period, or a summary administration for estates under a threshold with no contested claims. Where the ceiling is met, an attorney adds cost without adding much. The checks that decide it are specific: the current statutory dollar limit, whether real property counts toward it, whether beneficiary-designated accounts are excluded, and whether every heir will sign. If those line up, the whole matter can be handled with a notarized form and a certified death certificate.
The decision is best made once, at the front, with the will, the asset list and the state statute open at the same time. An estate that starts simple and stays simple rarely needs more than a filing fee and attention to dates.