One mis-registered increase or an unsupported high-rent deregulation can carry years of back rent, treble damages, and a legal rent that resets far below your underwriting. On thin margins, the gap between a sound basis and a costly one comes down to a single question: Did you see the exposure before you signed? Most buyers find out after.
Overcharge claims reach back years — and under HSTPA, the damages can treble.
Start with the address and the DHCR registration history — the backbone of every audit. Add the rent roll, leases, and any IAI/MCI paperwork you have.
BaseRentIQ rebuilds the lawful rent year by year, flags every increase the record can't support, tests each deregulation against the threshold in effect at the time, and reconciles DHCR against the rent roll.
A single, color-coded report — exposure per unit and in total, the opportunities a buyer can act on, and one risk score you can take to your IC or your lender.
Every upload feeds all eight modules at once — so the picture is coherent. Not eight disconnected reports, but one building seen completely, with the units that most warrant a closer look surfaced first.
Reconstructs the legal regulated rent year over year, flags every increase the registration history can't support, and surfaces units improperly removed from stabilization.
Pulls live NYC violation and complaint records from public data and maps them to the affected unit.
Calculates the documentation an owner needs to justify each increase, tracks what's been produced, and clears exposure as it's substantiated.
Reads each lease and rider — legal rent, preferential rent, tenure, and required disclosures — against what's on record.
Cross-checks what the rent roll represents against what's registered with DHCR — catching mismatches in rent, status, and tenant of record.
Identifies units that may qualify for lawful high-income deregulation — a potential path to reset rents — and flags them for follow-up.
On preferential-rent units, checks whether the gap between the legal and collected rent is papered correctly and the rider is on file.
Detects renumbering across the registration history that can signal an illegal deregulation — and distinguishes it from a lawful combination of units.
Every finding rolls up into a single risk score — not a black box, but a transparent sum of unit-level exposure you can open, trace, and defend line by line. It's the fastest honest answer to the only question that matters: what am I actually buying?
An address and a rent history give you a real read on day one. Add the leases and the rent roll, and BaseRentIQ reconciles representation against record. Add the IAI receipts, and watch the exposure resolve unit by unit — the analysis deepens as your diligence does.
The same analysis that surfaces liability surfaces upside: preferential rents that can be brought to legal, units held below potential, exposure a seller assumed was permanent that documentation can clear. Where others see only what can go wrong, BaseRentIQ shows you what you can act on.
One consistent read across every deal and every analyst, with a report that holds up to IC and lender scrutiny.
The rigor of an institutional underwriting team — without building or staffing one.
Understand exactly what you're buying before you're committed — in plain terms, no rent-stabilization attorney required to translate.
See a complete sample audit before you spend a dollar. When you're ready, run your own for $99 — a rounding error against the basis it can protect.
One flat price per building. No subscription, no seat licenses, no surprises.
You provide the DHCR rent history, the rent roll, and any leases; BaseRentIQ pulls live NYC building-violation records from public agency data. Your documents stay under your control.
No. BaseRentIQ produces diligence estimates to sharpen your own analysis and the conversation with your counsel — not a legal opinion. It's built to make that conversation faster and better-informed.
As complete as the records you supply — and the report tells you exactly where the gaps are. The more you input, the more refined the result.
No. Upload what you have and read the report. If all you have is an address and a rent history, that's enough to start.
One full audit of one building — every module, the complete report, and the risk score. See the sample first, so you know precisely what you're getting.
Run a sample audit now — or your own building for $99. This is only the beginning of what BaseRentIQ will do.