Quick answer: the biggest delay risks in Missouri are missing the one-year deadline to apply for letters, losing independent administration status, and real estate that needs to be sold. Estimate your own timeline with the Missouri probate timeline calculator.
1. Missing the one-year letters deadline
2. Losing independent administration status
Independent administration under RSMo § 473.780 et seq. is what lets most Missouri estates move with fewer hearings and less court approval. It requires either the will to allow it or all interested parties to consent — if either condition fails, the estate falls back to supervised administration, which moves slower by design.
3. The mandatory attorney requirement, unplanned for
RSMo § 473.787 requires a personal representative who isn't a licensed attorney to be represented by counsel for most Missouri estates. Families who don't anticipate this and haven't already identified an attorney can lose real time at the outset simply finding and retaining the right one — time that's avoidable with earlier planning.
4. Real estate that needs to be sold
Only real estate actually sold under court order counts toward Missouri's statutory fee scale calculation — but the sale itself still adds its own appraisal, listing, and closing timeline on top of the baseline, regardless of how it's ultimately valued for fee purposes.
A local probate attorney can review your estate — many offer a free consultation.