Key takeaways
- LOIs are non-binding on price but legally binding on exclusivity, the exclusivity period is the most critical LOI term to negotiate because it determines your leverage during the purchase agreement phase.
- The working capital methodology in the LOI, specifically, what is included in the peg and how the target is calculated, will almost always be used as the basis for the purchase agreement; negotiate the methodology now, not during purchase agreement negotiation.
- Indemnification caps and survival periods set in the LOI become the seller's post-close liability ceiling; understand what you are signing before you sign the exclusivity.
- LOI price adjustments for working capital and debt, often overlooked until closing, can reduce net proceeds by $500K-$2M if the methodology is unfavorable to the seller; model the adjustment before signing.
The LOI terms that matter most for sellers
An LOI typically covers: purchase price and structure, exclusivity, working capital methodology, key employee retention requirements, indemnification framework, closing conditions, and timeline. Of these, founders most frequently focus on purchase price and ignore the terms that will actually affect net proceeds and post-close obligations.
LOI Terms by Impact on Seller
Exclusivity: your most valuable LOI negotiation lever
Exclusivity is the most consequential term in an LOI for sellers, yet it receives the least attention. During exclusivity, you cannot solicit or negotiate with other buyers, you have given the signing buyer a monopoly on the transaction. The length and structure of exclusivity determines whether you retain negotiating leverage or lose it at the LOI stage.
Buyers will ask for 60-90 days of exclusivity. Standard market for a well-prepared middle market deal is 45-60 days. Push back on requests for 90+ days, or ensure the exclusivity contains a milestone structure: buyer must deliver a markup of the purchase agreement within X days, or deliver a quality of earnings report within Y days, or exclusivity terminates.
Never grant open-ended exclusivity extensions. A buyer who says "we need 30 more days to complete QoE" should receive a 30-day extension tied to delivery of the QoE report, not an open extension. Exclusivity extensions without milestones signal that the buyer is managing you, not running a diligence process.
Working capital: the adjustment that surprises founders at close
Working capital adjustments are the most common source of post-LOI purchase price surprises for founders. The adjustment mechanism is straightforward, if working capital at close is above the agreed target, the buyer pays more; if below, the seller receives less, but the methodology for calculating the target is frequently negotiated late and unfavorably.
The key parameters to agree on in the LOI: what is included in the working capital calculation (typically current assets minus current liabilities, but the specific line items matter), what is the target (typically a trailing 12-month average, but seasonality and timing can shift this significantly), and what is the dispute resolution mechanism if the parties disagree on the closing balance sheet.
Model the working capital adjustment before you sign the LOI using your last 12 months of balance sheet data. If the proposed methodology produces a target that systematically understates your actual working capital position, negotiate it now, not during purchase agreement drafting, when you are already in exclusivity and your leverage has diminished.
Working capital adjustments result in a net negative outcome (sellers receiving less than the headline price at close) in approximately 55% of middle market transactions, with an average post-close adjustment of 2-4% of deal value when the methodology was not explicitly agreed in the LOI.
55%
of middle market deals have a negative working capital adjustment at close
2–4%
average working capital adjustment as % of deal value when methodology not agreed in LOI
45–60 days
standard exclusivity period in a well-prepared middle market deal
$500K–$2M
range of purchase price impact from unfavorable LOI terms on working capital and indemnification
The LOI stage is the last moment of real leverage a seller has in the transaction. Once you sign exclusivity, every negotiation happens under the buyer's monopoly. The terms that matter most are not the ones you will remember to negotiate — price, timeline — but the ones that will surprise you at closing: working capital methodology, indemnification cap, and exclusivity milestone structure.
The LOI is not a handshake. It is a legal document that determines your negotiating position for every conversation that follows. Most founders spend more time reviewing their CIM than their LOI. That is the wrong ratio.
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