Our Story
Built by a Broker. For Brokers.
Cessna Barrett
Founder & Licensed CA Broker · DRE 01281555
TwinTC™ was founded by Cessna Barrett, a California licensed real estate broker with 27 years of experience closing transactions throughout California — from Los Angeles and San Francisco to Napa and Sonoma counties — having represented clients in 25 different California counties.
After nearly three decades of watching deals fall apart over missed signatures, incorrect dates, and overlooked contingencies — Cessna built the tool she always wished existed. Not software that replaces the agent. Software that protects the agent's work.
TwinTC™ is that tool.
Our Mission
Our Mission
To give every California real estate professional — from the brand new agent to the 20-year veteran — access to licensed broker-level document review at a price that makes sense.
No deal should fall apart over a paperwork error that a second set of eyes would have caught.
The Founder
Cessna Barrett
Founder & Licensed Broker · DRE 01281555
Credentials
Licensing
- Licensed California Real Estate Salesperson since 2000
- Licensed California Real Estate Broker since 2004
- DRE Designated Officer — Up Valley Real Estate (2004–2013)
Experience
- 27 years of California real estate transactions
- Closed transactions in 25 California counties — from LA to San Francisco to Napa & Sonoma
- Reviewer of thousands of contracts — long before AI and the modern computer era
Specialties
- Specialist in contract review and the legalities of contracts and disclosures
- Compliance, disclosure, and transaction coordination expert
- Platinum (L4) vibe coding level
Founder & Ventures
- Founder, Up Valley Real Estate — Napa Valley
- Founder, TwinTC™
- Founder, Cessna AI Solutions
- Founder, CCProtocol™
The Technology
AI-Assisted. Broker-Verified.
TwinTC™ combines the speed of artificial intelligence with the judgment of a licensed broker. The AI runs the first pass — checking every field, every date, every signature line. The broker reviews every flagged item and signs off on every completed audit.
Speed without sacrifice.
Technology without liability.
Have questions? Read the FAQ →
Your next deal closes itself.
Send us your next deal — RPA plus every disclosure (TDS, SPQ, AVID, NHD, HOA…). We'll audit the full file, open escrow, and book your inspectors — free. Reviewed by a licensed CA broker before anything goes out.