Founder, Resideline
Jeffrey
Batista
Software engineer and residential real estate investor. Builder of the valuation models behind Resideline, graded in public against real closing prices.
3.26%
Median valuation error
vs. real closing prices, on homes valued while still listed
12,508+
Closings graded in public
across 50 states, updated daily
10+ yrs
Engineering experience
data, ML, and large scale systems
Previously
Dstillery
Staff Site Reliability Engineer
2019 to 2023
Apptio
Cloud Infrastructure Engineer II
2017 to 2019
Priceline
DevOps Engineer, Network Engineering
2016
Vultr
System Administrator
2015 to 2016
Condition is one of the most underestimated drivers of value.
About
Jeffrey Batista is the founder of Resideline, a real estate technology company building institutional grade valuation and investment analysis tools for real estate investors.
A software engineer with more than 10 years of experience, Jeffrey has worked across full stack development, infrastructure, data engineering, machine learning, and large scale systems. He left his engineering career to build Resideline full time.
Jeffrey is also a real estate investor with nearly a decade of hands on experience buying, renovating, managing, and analyzing residential properties. His experience on both sides of the industry, as an engineer and an investor, led him to build Resideline after seeing how fragmented and outdated many of the tools available to individual investors were.
Today, he leads the development of Resideline’s proprietary data infrastructure, automated valuation models, rental analytics, and investment underwriting technology.
Research and writing
Published work
16 articles
Market Analysis
Where Flippers Buy Houses at Half Price
August 22, 2026 · 7 min read
Market Analysis
The Fixer-Upper Pipeline Map: Distress-Heavy Cities Posted 3.5x the Flip Margins
August 22, 2026 · 6 min read
Market Analysis
What a Fixer-Upper Really Sells For: The 20.5% As-Is Discount, Measured in 580 Cities
August 22, 2026 · 7 min read
Market Analysis
How Much Will My House Be Worth in 10 Years? The 3 Percent Rule Is Off by Nearly Half
August 22, 2026 · 7 min read
Market Analysis
Rent vs Buy, Measured City by City: Real Rents Covered P&I in 61% of 628 Cities
August 22, 2026 · 7 min read
Market Analysis
The Best Real Rental Yields in America: 628 Cities Ranked by Achieved Rent
August 22, 2026 · 8 min read
Market Analysis
Does the 1% Rule Still Work? It Survives in 9 of 628 Cities
August 22, 2026 · 7 min read
Market Analysis
What a Swimming Pool Actually Adds: $45,000, From 135,239 Matched Sales
August 21, 2026 · 7 min read
Product
Track Your Real Estate Portfolio Like a Stock Portfolio
August 14, 2026 · 7 min read
Market Analysis
What Sellers Actually Made: Real Home Appreciation by City, From 6.96 Million Repeat Sales
August 14, 2026 · 7 min read
Market Analysis
The Distress Language Index: Where As-Is and Investor Special Listings Concentrate
August 14, 2026 · 7 min read
Market Analysis
Where Flips Actually Happen and What They Gross: House Flipping Margins by City
August 14, 2026 · 7 min read
Market Analysis
America's Two-Market Cities: Where One Median Hides Two Housing Markets
August 14, 2026 · 6 min read
Market Analysis
The Renovation Premium: Where Renovated Homes Command the Largest Price Gap
August 14, 2026 · 6 min read
Market Analysis
Asking Rent vs Achieved Rent: What 2.9 Million Closed Listings Show
August 14, 2026 · 7 min read
Valuation & Accuracy
Condition Is the Blind Spot in Automated Home Valuations
August 13, 2026 · 5 min read