Identify the controlling round.
Trace terms to their source and date. A counter changes the items it actually changes; silence does not become acceptance.
04 / LOI Builder
The right terms. The right round.
Turn sourced business terms into an editable LOI or counteroffer. Keep the current proposal, the financial model and the open items in step as negotiations move.
See it in practice Editable Word draft + review record
Illustrative term excerpt · fictional Harbor proposal
Lease terms for review
- Premises
- Harbor · 10,000 RSF
- Term
- 36 months
- Proposed commencement
- January 1, 2027
- Year-one base rent
- $30.00 / RSF / year
- Annual base escalation
- 3%
- Base-rent abatement
- Months 1–3; expenses and parking still payable
- TI reimbursement
- $60,000 modeled in month 4, subject to documentation
Selected business terms from the fictional model example. This excerpt is not a complete LOI or an offer for acceptance.
What you bring
Start with the source.
- The current proposal, counteroffer and relevant deal notes.
- The intended parties, premises, offer round and authorized signatory.
- Your approved template and clause language, plus the financial model when available.
What you receive
Work you can make yours.
- An editable LOI in the supplied house format or neutral term layout.
- A separate record of unresolved terms and changes.
- A check of the draft’s economics against the controlling proposal and model.
How the skill works
From source to review.
Reconcile the economics.
Check area, rate units, escalation timing, expenses, concessions and TI. Lease commencement, rent commencement and early access are separate terms.
Preserve the language.
Carry forward approved wording where appropriate, identify proposed changes and review the rendered pages for leftover identities or incomplete clauses.
Both sides of the transaction
Built for the way you represent.
Support the client’s decision.
Prepare an initial offer or revise a counter without losing the client’s requested terms or the questions still awaiting a landlord response.
Put the proposal in context.
Organize an owner-authorized counter and its open items. Provide the owner’s approved terms and language for the draft to follow.
Your final review
- Confirm parties, signatory, source versions and every substantive term.
- Have the broker and legal reviewer resolve legal wording and binding provisions.
- Drafting does not submit, sign or accept an offer. A change summary is not a tracked-changes Word redline.
Can I use an existing LOI?
Yes. Supply the document and the current terms. The workflow works on a copy and preserves approved styles, unchanged language, exhibits and numbering where possible.
What does it do with a missing term?
It records the open item instead of supplying an assumed concession, date or legal provision from another deal.
Does an LOI automatically mean nonbinding?
No. The workflow preserves the source’s binding and nonbinding language and flags ambiguities for professional review. It does not determine legal effect from the document title.
One membership. The complete library.
Start with the work
on your desk.
All five skills, versioned improvements and personal help getting set up. Bring a past deal you know well and make the workflow your own.
Currently supported in Claude. A separate compatible AI plan is required. The separate CoStar workflow is a member preview for ChatGPT Work; browser access, file tools and customer setup are required.