Many project schedules are built on optimistic assumptions about due diligence โ that title will come quickly, curative will be minimal, surveys will align perfectly, and nothing unexpected will appear. In reality, these tasks have lead times, dependencies, and often require coordination between multiple parties working on different clocks.
A smarter due diligence timeline acknowledges that reality up front. It structures key milestones around what actually takes time โ not what we hope will take time. That's how you protect your financing close, tax equity commitments, and M&A milestones.
The Five Assumptions That Break Project Schedules
Most compressed schedules rely on silent assumptions. When even one of them fails, the schedule doesn't slip gradually โ it stalls. And the delay shows up at the worst possible moment: during financing or M&A.
Assumed vs. Realistic Timing
This is where many teams reset expectations. If you're targeting a 90-day close but curative alone could consume 8โ12 weeks, your due diligence timeline is already misaligned before you start.
| Task | Assumed | Realistic | Risk Level |
|---|---|---|---|
| Title Commitment | 1โ2 weeks | 3โ6 weeks | Medium |
| Title Review | 1 week | 2โ4 weeks | Medium |
| Curative Work | 2 weeks | 4โ12+ weeks | High |
| ALTA Survey | 2โ3 weeks | 4โ8 weeks | Medium |
| Mineral Subordination | Not budgeted | 4โ10 weeks | High |
| Pre-Close Endorsements | A few days | 2โ3 weeks | Medium |
The Step That Quietly Kills Deals
It is almost always curative. Curative includes resolving unreleased liens, tracking probate gaps, correcting legal descriptions, clearing boundary inconsistencies, negotiating mineral subordinations, and confirming insurable access. Each step involves third parties โ and third parties do not move on your capital schedule.
"Curative is where optimism meets reality."
What 2026 Buyers and Lenders Expect
Capital providers are underwriting land risk earlier and more aggressively. A short due diligence timeline doesn't signal efficiency โ it signals inexperience. Sophisticated buyers know how long this work actually takes.
| Area | Prior Market Tolerance | 2026 Expectation |
|---|---|---|
| Curative | Ongoing at close | Mostly resolved |
| Mineral Risk | Flagged | Screened and addressed |
| Assignment Review | Late stage | Early-stage confirmed |
| Access | Assumed workable | Insurable |
| Survey Exceptions | To be resolved | Coordinated with title |
Run Tasks in Parallel, Not Sequence
A common mistake is sequencing work instead of overlapping it. Parallel movement compresses risk without compressing reality.
Your Close Date Calculator
Enter your target close date and see a backwards-mapped milestone schedule based on realistic due diligence timing. Use this to identify where your current plan may be misaligned.
The 6-Month Reference Framework
The point is not that every project takes six months. The point is that very few take three. If your schedule assumes everything goes right, you are not planning for development โ you are planning for luck. And luck does not clear title.
Where Projects Get Overconfident
Overconfidence usually shows up in three places โ and none of them are rare. They are routine. But they are only routine if your due diligence timeline allows time to address them.
- Surface vs. subsurface rights โ assuming surface control equals full control
- Assignability โ discovering transfer restrictions only during M&A
- Access โ assuming historical access is the same as insurable access