About ArbiBase · Founded 2025
The arbitrage market is broken. We're rebuilding the inputs.
Every serious operator we know keeps the same private spreadsheet: verified landlords, vetted markets, real numbers. We turned that spreadsheet into a product.
2025
Founded
Built by operators, for operators.
Signed
Owner consent
On file before a property is listed.
1.5x
Greenlight minimum
Estimated revenue to rent, on every listing.
$0
Landlord fees
Owners never pay to list.
The Problem
Arbitrage runs on whisper networks and broken inputs.
What operators actually face
01
Cold outreach roulette.
Operators send message after message to find one landlord who will allow STR or MTR. Most never reply.
02
Stale, scraped data.
Listings that said "yes to STR" three years ago. HOA bylaws nobody actually read.
03
Underwriting by gut feel.
AirDNA averages, optimistic occupancy, expense lines from a YouTuber's spreadsheet.
04
Compliance after the fact.
Sign first. Pray the city framework doesn't change. Lose units to rental bans.
What we changed
01
Inventory is consented up front.
Every property has verified landlord consent for STR/MTR before listing.
02
Listings get re-checked.
Verification status is re-checked periodically. Listings that no longer qualify are updated or removed.
03
Underwriting uses real comps.
Per-zip occupancy and ADR from operator-reported data — not scraped listings.
04
Compliance shipped with the listing.
Each unit ships with state + city framework attached. Updated when the law moves.
Methodology
How a unit gets verified.
Every property passes the same four-step check. No shortcuts. No marketing exceptions.
2–4 days
01
Landlord attestation
Owner's attestation obtained verbally, in writing, or through our formal consent form.
1 day
02
HOA / building rules
Where applicable, we pull HOA bylaws and confirm STR/MTR is permitted.
Ongoing
03
City + state framework
Current city + state STR/MTR framework attached. Re-checked periodically.
Periodically
04
Re-verification
Status re-checked periodically. Landlord re-attests. Rules re-checked. Listings that no longer qualify are removed.
Standards
What "verified" actually means.
Inventory
Verified ≠ guaranteed.
Verified means signed owner consent, a Greenlight pass at 1.5x revenue to rent, and city and ZIP rules checked as of the verification date. It isn't a guarantee of legality or income, and you still negotiate and sign your own lease. What Verified covers.
Numbers
Conservative numbers.
Greenlight estimates occupancy and nightly rates from market data and comparable listings, and every listing shows its inputs. Estimates, not promises.
Coverage
We say 'no' a lot.
A property is published as Verified only after it clears every check, and many don't. We'd rather have a small honest index than a big dirty one.
Conflicts
We don't take landlord fees.
ArbiBase is operator-side only. Landlords don't pay to list. Removing the conflict is how verification holds.
From the founders
Built for operators.
"We've walked away from a lot of listings to keep the index clean. We'd do it again. An index you can't trust is just a prettier Craigslist."
The ArbiBase founding team
OPERATORS FIRST
Running STR acquisitions since 2023. Built ArbiBase to bring transparency and standardization to the arbitrage market.
Contact
Talk to an ArbiBase rep.
Office
ArbiBase, LLC
1111b S. Governors Ave STE 48151
Dover, DE 19904
1111b S. Governors Ave STE 48151
Dover, DE 19904
Join the movement
Be Part of the Future of Rental Arbitrage
We're building the infrastructure that didn't exist. Verified inventory for operators. Vetted professionals for owners.