A claim reaches the screen only if its supporting quote is found verbatim in the source PDF. The page number and the on-page highlight are computed from that quote. The model never draws them. This verification prevents hallucinated claims from reaching the screen.
The system locates an exact clause on its page and discards any paraphrase or fabricated quotation that fails the match. The test suite pins this behavior before any release.
If you ask for an exclusive-use or percentage-rent clause that the lease does not contain, the answer is “Not found in the lease.” The answer also reports that the protection is absent.
Deadlines are computed from anchors and notice periods in the text. CAM findings sum exactly to billed minus lease-correct. The arithmetic is deterministic.
Other tools cite sources too, but they do not show how they moved from your question to their answer. With Leaseful, you can audit the AI’s entire reasoning path, including every clause it consulted, every connection it followed, and every check the answer passed before it reached you.
| Lease abstraction tools | Leaseful | |
|---|---|---|
| Accuracy comes from | Human reviewers re-checking the AI | Machine verification against the document itself |
| Turnaround | Days per lease | Reading starts the moment you upload |
| Citations | Generated, checked by you | Verbatim quotes, located and verified |
| When the lease is silent | A best guess, or a blank | “Not found in the lease.” |
| Pricing | Quoted per lease, or per page | One flat fee for the whole portfolio |
Commercial leases contain buried interactions like this, and abstraction tools often miss them. Leaseful’s proprietary graph-based query engine reads the way a good lawyer reads. It maps the entire lease into a connected graph of clauses and the relationships among cross‑references, defined terms, and amendments. It uses that graph to answer questions across the whole document instead of searching only for keywords. An answer can depend on a defined term in Section 1, an exclusion in Section 12.3, and an exhibit forty pages later. The same traversal runs across every lease in the portfolio at once, and facts already extracted during reading answer common questions immediately.
“Are the CAM charges capped?”
Two real answers over the VoltMart Electronics lease from the demo portfolio are replayed the way the product produced them. The lease answers one question and does not answer the other.
Ask the leasereplay
voltmart_electronics.pdfp.1 · §5
5. Common Area Maintenance; Taxes; Insurance.
This is a net lease. Tenant shall pay, as Additional Rent, Tenant’s proportionate share of all common area maintenance charges (“CAM”), real estate taxes and assessments, and insurance premiums for the Shopping Center, which proportionate share is 17.3% (the “Tenant’s Share”), based on the ratio of the rentable area of the Premises to the gross leasable area of the Shopping Center. Controllable CAM expenses shall not increase by more than five percent (5%) per calendar year on a cumulative basis. CAM expenses shall exclude capital expenditures, roof replacement, costs reimbursed by insurance or warranty, leasing commissions, ground rent, and depreciation.
6. Maintenance and Repairs.
Landlord shall maintain the structural elements of the Shopping Center, including roofs, foundations, and exterior walls…
