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Due Diligence

Estoppel Tracker

Run estoppel collection for a whole property and flag discrepancies against the rent roll.

Published by Avi Hacker, J.D. · cre-agent-skills · GitHub

★ 105 on GitHub0 downloads on LenderSkills

Free · v1.3.0

Install it in one line — paste a single command into Claude, ChatGPT or Cursor and it writes the skill into your project.

Free, and about thirty seconds: a work email and a six-digit code.

Screened

Downloading shares your name, firm, role, and email with Avi Hacker, J.D.. That introduction is what keeps every skill here free.

What this skill does

Manages tenant estoppel certificates from request through threshold compliance.

What it does

  • Builds the tracking list straight from the rent roll
  • Reviews each returned certificate for discrepancies
  • Monitors threshold compliance against PSA requirements
  • Flags the material issues that affect underwriting or closing

When to use it

Use this skill whenever you need to systematically track estoppel certificate delivery and review for a multifamily or commercial acquisition. It is appropriate after the PSA is signed and the seller has agreed to deliver estoppels, or whenever you need to verify that tenant-reported lease terms match the rent roll and lease abstracts on file.

What to have ready

  • The current rent roll with unit numbers, tenant names, monthly rent amounts, lease start/end dates, security deposit amounts, and lease type (market, Section 8, other)
  • Lease abstracts or lease summaries from due diligence, showing key lease terms
  • The PSA's estoppel requirements: minimum return threshold percentage and delivery deadline
  • The property address and total unit count
  • Any estoppel certificates that have already been received (paste content or describe discrepancies)
  • Property type and whether any units are vacant

How to use it

  1. Download it with the button above. You'll sign in with a work email — that's how the creator knows who is using their skill.
  2. Copy the install prompt from the "Run it in Claude" box, and paste it into Claude along with the file. Claude installs the skill, fills in your firm's details where the file has [BRACKETED] placeholders, and runs a quick test with you.
  3. Then just ask in plain English. Claude picks the skill up on its own when a request matches it. Anything it still needs, it asks you for — it won't invent a number.

"Use the Estoppel Tracker skill — I've got the current rent roll with unit numbers, tenant names."

What you get back

A structured report covering overall completion, batch status, discrepancy summary, material issues, outstanding units, threshold compliance, and underwriting impact. You get it as readable analysis plus the underlying data, so it can feed straight into a memo or another skill.

Good to know

  • Output quality tracks input quality. A missing figure is flagged as missing — it is never estimated to fill a gap.
  • Every draft is a starting point for your own review, not a finished decision.
  • Runs anywhere Claude does: the Claude app, Claude Desktop, or Claude Code.

Source & credit

Imported from the open-source cre-agent-skills library by Avi Hacker, J.D. (github.com/ahacker-1/cre-agent-skills), Apache-2.0 license. The author's content is unmodified apart from a legal disclaimer appended at the end of the package. Full credit to the author.

Legal disclaimer

This skill drafts; it does not decide. Its output is not legal, tax, accounting, appraisal, or investment advice, and using it creates no attorney-client, fiduciary, or advisory relationship. Nothing it produces is a commitment to lend or an offer to sell a security. Verify every number, date, citation, and conclusion against the source documents, and have a qualified professional licensed in the relevant jurisdiction review the work before you rely on it or send it to a borrower, investor, counterparty, or regulator. Laws, rates, and market data change. The final work product is yours.

Inside this skill

The actual file you get. Members can read it in full before saving it.

Imported to LenderSkills.ai from the open-source cre-agent-skills library.
Author: Avi Hacker, J.D. - https://github.com/ahacker-1/cre-agent-skills
License: Apache-2.0 (see repository LICENSE). Redistributed with attribution; the author's content is unmodified apart from a legal disclaimer appended by LenderSkills at the end of the file.
Imported: 2026-07-26
The knowledge/ and research/ files linked below live in the upstream repository.

Estoppel Tracker

Manages tenant estoppel certificate collection for an entire property: builds the tracking list from the rent roll, reviews each returned certificate for discrepancies, monitors threshold compliance against PSA requirements, and flags material issues that affect underwriting or closing.

When to Use This Skill

Use this skill whenever you need to systematically track estoppel certificate delivery and review for a multifamily or commercial acquisition. It is appropriate after the PSA is signed and the seller has agreed to deliver estoppels, or whenever you need to verify that tenant-reported lease terms match the rent roll and lease abstracts on file.

What You'll Need to Provide

  • The current rent roll with unit numbers, tenant names, monthly rent amounts, lease start/end dates, security deposit amounts, and lease type (market, Section 8, other)
  • Lease abstracts or lease summaries from due diligence, showing key lease terms
  • The PSA's estoppel requirements: minimum return threshold percentage and delivery deadline
  • The property address and total unit count
  • Any estoppel certificates that have already been received (paste content or describe discrepancies)
  • Property type and whether any units are vacant

Mission

Manage tenant estoppel certificate collection for the entire property. For properties with more than 50 units, process tenants in batches of 50 to track delivery, review content, and flag discrepancies with the rent roll. Ensure the PSA-required minimum threshold is met before closing.

Strategy

Step 1: Generate Estoppel Certificate Tracking List

  • Extract complete tenant roster from the rent roll provided
  • Assign a unique tracking ID to each unit/tenant
  • Record baseline data per tenant from the rent roll:
    • Unit number
    • Tenant name
    • Current monthly rent
    • Lease start/end dates
    • Security deposit amount

Reading the full skill counts as a download. The contributor receives your name, company, and email.

Ratings & reviews

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No written reviews yet. If you run this on a live file, say how it went. The next lender reading this page is deciding whether to trust it.

Examination record

Archive inspectionPackage unpacked in isolation; contents and paths verified
Executable & binary blockExecutables, binaries, and scripts rejected automatically
Static analysisScanned for exfiltration, credential access, obfuscation, prompt injection
Human reviewA moderator read the skill end to end. Retired on 14 September 2026 — screening decides now.
What each gate checks

Run it in Claude

  1. Copy the install command above
  2. Paste it into Claude, ChatGPT or Cursor
  3. It writes the skill in, fills in your firm’s details, and test-runs it with you

Prefer the file? The prompt above is for a package you already downloaded.

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Details

Version1.3.0
AddedJul 26, 2026
UpdatedJul 26, 2026
CategoryDue Diligence
Downloads0
On GitHub★ 105
Tagsestoppels, tenants, closing conditions

More from Avi Hacker, J.D.

Imported from their public repository with attribution. Their other skills, and where to find the original, are on their contributor page.

View contributor