# Identify Issues In Estoppel Certificate > Guides tenant-by-tenant review of estoppel certificates against lease abstracts, rent roll, and acquisition agreement requirements, identifying factual discrepancies, qualification language, and coverage gaps that affect closing conditions. - Skill: `finchipaiorg/identify-issues-in-estoppel-certificate` (Agent Skill) - Install (CLI): `npx skillmds@latest add finchipaiorg/identify-issues-in-estoppel-certificate` - Raw SKILL.md: https://api.skillmd.com/api/skills/finchipaiorg/identify-issues-in-estoppel-certificate/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: FinchipAIOrg (https://skillmd.com/u/finchipaiorg) - Updated: 2026-09-22 - Page: https://skillmd.com/skills/finchipaiorg/identify-issues-in-estoppel-certificate --- # Skill: Identify Issues in Tenant Estoppel Certificates for Office Building Acquisition ## 1. Subject-matter triage - Treat the work as a tenant-by-tenant comparison exercise with a portfolio-level coverage check. - Start by identifying all tenants and all estoppels in scope, then map each estoppel to the corresponding lease abstract, rent roll entry, and PSA estoppel requirement. - If the source set includes more than one tenant or more than one estoppel date, enumerate the full set before analyzing individual issues. - If only one tenant is in scope, say so explicitly and explain why no broader portfolio comparison is needed. ## 2. Failure modes the skill is correcting - Baseline reviews each estoppel in isolation instead of comparing it against the lease abstract and rent roll, which hides mismatches in rent, deposit, term, or landlord obligations. - Baseline identifies qualifications and exceptions as generic reservation language without testing whether they signal a dispute, an unperformed obligation, or a post-closing claim risk. - Baseline overlooks side letters, amendments, or other disclosed adjustments that are not carried into the lease abstract or rent roll. - Baseline treats coverage as a tenant-level issue only and fails to test whether the compliant estoppels satisfy the PSA closing condition as a portfolio. - Baseline stops at discrepancy spotting and does not translate each issue into source comparison, transactional consequence, and next-step remediation. ## 3. Legal frameworks / domain conventions that apply - In a commercial acquisition, an estoppel is used to confirm the tenant’s current lease status and to reduce later disputes over lease terms. - The PSA may condition closing on delivery of estoppels in a required form and from tenants representing a required coverage threshold or specified tenant set. - A nonconforming estoppel cannot usually be counted toward the closing condition if it departs from the required form or contains unacceptable qualification language. - Lease comparison should focus on core economics and operational terms: base rent, escalations, security deposit, term, renewal rights, termination rights, concessions, allowances, landlord obligations, defaults, offsets, and known disputes. - Tenant qualifications, “to the best of knowledge” language, or references to unresolved items must be tested for practical risk, not merely noted as stylistic caveats. - A disclosed amendment, side letter, or modification not reflected in the abstract may indicate the abstract is stale or incomplete and may affect acquisition diligence. ## 4. Analytical scaffolds - For each tenant, read the estoppel, lease abstract, rent roll, and PSA requirement together; compare every confirmed factual statement against the other source documents. - Compare stated rent, deposit, term, and any allowance or concession figures against the rent roll and lease abstract; flag any mismatch and identify which source appears inconsistent. - Check whether the estoppel contains qualifications, conditions, carveouts, or reservations; assess whether each one is merely informational or raises closing or post-closing risk. - Test any disclosed amendment, side agreement, or tenant-specific understanding against the abstract and PSA; determine whether it is missing from the diligence record or changes the economics. - Assess whether the estoppel is compliant enough to count toward the PSA closing condition; if not, identify what makes it nonconforming and what cure is needed. - For each issue, state the scale or threshold it implicates, cross-reference the other source that controls or conflicts, and explain the downstream transaction consequence. - Use a uniform ordinal severity scale for every issue, defined once at the top of the memorandum, and apply it consistently. - End each issue entry with a concrete remediation step tied to the responsible party and transaction timing. ## 5. Vertical / structural / temporal relationships - Portfolio coverage is a closing-condition question, not just a document-quality question; the relevant comparison is the compliant estoppel set against the PSA threshold or required tenant list. - Lease abstract, rent roll, and estoppel certificate should be treated as interdependent records; a mismatch may reflect a stale abstract, a rent roll error, a lease amendment not captured in diligence, or a tenant statement that should be corrected. - If the PSA or related instructions impose a deadline, condition precedent, or pre-closing cure window, place the issue in that timing context. - If a tenant’s estoppel reveals a future-effective change, distinguish present-day inconsistency from a prospective issue that will matter at or after closing. ## 6. Output structure conventions - Produce a memorandum, not a chart alone: begin with a short executive summary of the portfolio-level result and the most material issues. - Include a legend for the severity scale at the outset, using clear ordinal labels. - Organize the body by tenant, with each tenant section covering: estoppel reference, confirmed facts, discrepancies versus the lease abstract and rent roll, qualification analysis, PSA compliance impact, severity, and recommended action. - Where the same issue appears across multiple tenants, note the pattern but still analyze each tenant separately. - For every issue entry, include: the affected term or figure, the conflicting source, the practical consequence for closing or post-closing risk, and a recommended cure or follow-up. - Use conventional issue-memo headings rather than a rubric-shaped list; do not mirror any hidden checklist structure. - End with a distinct Recommended Actions section that assigns each action to a role and ties it to the closing timeline or other source deadline. - The deliverable filename must be `estoppel-issue-memorandum.docx`.