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What Buyers Need to Know Before Taking Over Leases in an Acquisition

Written by Alejandra Juarez | Feb 9, 2026 4:29:56 PM

What Buyers Need to Know Before Taking Over Leases in an Acquisition

When buyers underwrite an acquisition, lease assumptions often get treated as a box to check rather than a risk to interrogate. The thinking is familiar: the leases are in place, the income is contracted, and the story holds.

Until it doesn’t.

Hidden termination rights, misunderstood rent escalations, or outdated assumptions about lease obligations can materially impact cash flow, financing terms, and exit value. In many deals, the leases themselves — not the market — are what end up blowing up the model.

Before you assume a lease portfolio in an acquisition, here are the most critical areas buyers need to fully understand.

1. Lease Assumption Is Not Automatic (or Uniform)

In most acquisitions, buyers assume existing leases — but that assumption comes with nuance that’s easy to miss.

Not all leases transfer cleanly. Some require tenant notice or consent upon a change of ownership. Others include provisions that trigger rights or obligations the buyer may not have anticipated, such as changes in liability structure or guarantor requirements.

Key questions buyers should be asking:

  • Do any leases require tenant consent or notice upon assignment?
  • Are there legacy amendments or side letters that alter assumption terms?
  • Does the buyer inherit any unresolved landlord obligations or defaults?

If these details aren’t surfaced during diligence, buyers can walk into post-close friction with tenants — or worse, legal exposure.

2. Termination Clauses Can Quietly Undermine Value

Early termination rights are one of the most common — and most expensive — surprises in a lease review.

These clauses may be tied to specific dates, notice periods, penalties, or performance thresholds. They often sit buried in amendments or rider language rather than the original lease document, making them easy to overlook.

What matters most isn’t just whether a termination right exists, but:

  • When it can be exercised
  • How much notice is required
  • What penalties (if any) apply
  • Whether termination is conditional or unconditional

From a buyer’s perspective, even a small percentage of income exposed to early termination can materially change risk profiles, debt underwriting, and hold assumptions.

3. Rent Escalations Are Rarely as Simple as They Look

Rent growth assumptions are foundational to any acquisition model — but leases don’t always escalate the way spreadsheets assume they do.

Common pitfalls include:

  • Percentage increases that only apply to base rent, not recoveries
  • CPI-based escalations with caps, floors, or reset mechanics
  • Step-ups that differ by option period
  • Escalations that were negotiated away in amendments

If escalations are misread or inconsistently applied across a portfolio, buyers may be underwriting growth that never materializes.

The only way to be confident is to tie every projected increase back to source-level lease language — not summary schedules or inherited rent rolls.

4. Amendments, Side Letters, and “Non-Standard” Terms Matter

The most impactful lease risks often live outside the base document.

Over time, leases accumulate amendments that adjust rent, term, options, operating expenses, and tenant rights. Side letters may grant concessions or protections that never make it into formal lease summaries.

Buyers should assume that:

  • The most recent amendment governs critical economics
  • Prior concessions may still be in effect
  • “One-off” terms can materially affect NOI

Without a comprehensive review of all lease documents tied to each tenant, it’s easy to misstate income, obligations, or renewal risk.

5. Lease Risk Directly Impacts Financing and Exit

Lease quality doesn’t just affect operating performance — it influences debt terms and valuation.

Lenders increasingly scrutinize:

  • Term remaining and rollover exposure
  • Concentration risk tied to termination rights
  • Certainty of contractual rent growth
  • Documentation accuracy and consistency

At exit, buyers will do the same diligence you did — and any unresolved lease risk can translate into retrades, price reductions, or delayed closings.

Turning Lease Review Into a Competitive Advantage

The buyers who win consistently aren’t just faster — they’re more certain.

Treating lease diligence as a strategic exercise rather than a compliance task allows buyers to:

  • Underwrite with confidence
  • Surface risks early
  • Strengthen lender conversations
  • Protect exit value

That confidence only comes from having lease data that is accurate, complete, and traceable back to the source documents — not assumptions layered on assumptions.

In today’s acquisition environment, clarity around lease obligations isn’t a nice-to-have. It’s a prerequisite for making smart deals.

 

How Prophia Helps Buyers De-Risk Lease Assumptions

Assuming leases doesn’t have to mean assuming risk.

Prophia gives buyers a clear, source-backed view of every lease obligation before they close — from termination rights and rent escalations to amendments and non-standard terms that can materially impact value.

Instead of relying on inherited rent rolls or manual review, buyers use Prophia to:

  • Instantly surface termination clauses, options, and assignment language across an entire portfolio
  • Validate rent escalations and economic terms directly against source lease documents
  • Identify inconsistencies, missing amendments, and hidden risks before they reach lenders or IC
  • Move faster in diligence without sacrificing confidence or accuracy

With Prophia, lease review becomes a competitive advantage — enabling buyers to underwrite with certainty, avoid surprises post-close, and protect both financing terms and exit value.

Want to see how Prophia helps buyers turn lease complexity into clarity?
Request a demo or learn how leading acquisition teams are using Prophia to make smarter, faster deals.