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.
3.37%
Median valuation error
vs. real closing prices, on homes valued while still listed
17,926+
Closings graded in public
across 37 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both sides of the industry, as an engineer and an investor, led him to build Resideline after seeing how fragmented and outdated many of the tools available to individual investors were.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
108 articles
Investing Guides
How to Comp a House: A Practical Guide to Real Estate Comps
September 11, 2026 · 6 min read
Market Analysis
Does Crime Actually Lower Home Prices? We Checked 688 Counties
September 8, 2026 · 10 min read
Market Analysis
Safest Counties in Wisconsin: 27 Ranked (2026)
September 8, 2026 · 12 min read
Market Analysis
Safest Counties in West Virginia: 8 Ranked (2026)
September 8, 2026 · 8 min read
Market Analysis
Safest Counties in Washington: 18 Ranked (2026)
September 8, 2026 · 13 min read
Market Analysis
Safest Counties and Cities in Virginia: 36 Ranked (2026)
September 8, 2026 · 14 min read
Market Analysis
Safest Counties in Texas: 69 Ranked (2026)
September 8, 2026 · 17 min read
Market Analysis
Safest Counties in Tennessee: 32 Ranked (2026)
September 8, 2026 · 14 min read
Market Analysis
Safest Counties in South Carolina: 22 Ranked (2026)
September 8, 2026 · 13 min read
Market Analysis
Safest Counties in Pennsylvania: 37 Ranked (2026)
September 8, 2026 · 14 min read
Market Analysis
Safest Counties in Oregon: 17 Ranked (2026)
September 8, 2026 · 12 min read
Market Analysis
Safest Counties in Oklahoma: 13 Ranked (2026)
September 8, 2026 · 12 min read
Market Analysis
Safest Counties in Ohio: 33 Ranked (2026)
September 8, 2026 · 14 min read
Market Analysis
Safest Counties in North Carolina: 42 Ranked (2026)
September 8, 2026 · 16 min read
Market Analysis
Safest Counties in New Jersey: 20 Ranked (2026)
September 8, 2026 · 13 min read
Market Analysis
Safest Counties in New Hampshire: 8 Ranked (2026)
September 8, 2026 · 8 min read
Market Analysis
Safest Counties and Cities in Missouri: 16 Ranked (2026)
September 8, 2026 · 11 min read
Market Analysis
Safest Counties in Minnesota: 18 Ranked (2026)
September 8, 2026 · 12 min read
Market Analysis
Safest Counties in Michigan: 31 Ranked (2026)
September 8, 2026 · 14 min read
Market Analysis
Safest Counties and Cities in Maryland: 18 Ranked (2026)
September 8, 2026 · 12 min read
Market Analysis
Safest Counties in Maine: 8 Ranked (2026)
September 8, 2026 · 7 min read
Market Analysis
Safest Parishes in Louisiana: 14 Ranked (2026)
September 8, 2026 · 13 min read
Market Analysis
Safest Counties in Kentucky: 19 Ranked (2026)
September 8, 2026 · 13 min read
Market Analysis
Safest Counties in Indiana: 20 Ranked (2026)
September 8, 2026 · 13 min read
Market Analysis
Safest Counties in Illinois: 20 Ranked (2026)
September 8, 2026 · 13 min read
Market Analysis
Safest Counties in Idaho: 9 Ranked (2026)
September 8, 2026 · 9 min read
Market Analysis
Safest Counties in Georgia: 35 Ranked (2026)
September 8, 2026 · 11 min read
Market Analysis
Safest Counties in Florida: 27 Ranked (2026)
September 8, 2026 · 15 min read
Market Analysis
Safest Counties in Colorado: 15 Ranked (2026)
September 8, 2026 · 12 min read
Market Analysis
Safest Counties in California: 42 Ranked (2026)
September 8, 2026 · 14 min read
Market Analysis
Safest Counties in Arkansas: 12 Ranked (2026)
September 8, 2026 · 13 min read
Market Analysis
Safest Counties in Arizona: 11 Ranked (2026)
September 8, 2026 · 11 min read
Market Analysis
Safest Counties in Alabama: 26 Ranked (2026)
September 8, 2026 · 12 min read
Market Analysis
Safest Counties in Utah: 9 Ranked (2026)
September 8, 2026 · 6 min read
Market Analysis
Safest Counties in New Mexico: 9 Ranked (2026)
September 8, 2026 · 8 min read
Market Analysis
Safest Counties in Mississippi: 10 Ranked (2026)
September 8, 2026 · 9 min read
Market Analysis
Safest Counties in Massachusetts: 12 Ranked (2026)
September 8, 2026 · 8 min read
Market Analysis
Safest Counties in Kansas: 9 Ranked (2026)
September 8, 2026 · 9 min read
Market Analysis
Safest Counties in Iowa: 10 Ranked (2026)
September 8, 2026 · 6 min read
Market Analysis
Safest Counties by State: 37 States Ranked (2026)
September 8, 2026 · 4 min read
Market Analysis
Cash Flow or Growth: The Two Tend to Trade Off
August 24, 2026 · 7 min read
Market Analysis
Did Homes Beat Inflation? 71% of Measured Home Resales Did
August 24, 2026 · 6 min read
Market Analysis
The House Rent Premium Shrinks to About 7% After Matching Bedrooms
August 24, 2026 · 5 min read
Market Analysis
Where Flippers Buy Houses Below Market
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 Ran Well Below the Historical Median
August 22, 2026 · 7 min read
Market Analysis
Rent vs Buy, Measured City by City: Observed rents Covered P&I in 61% of 628 Cities
August 22, 2026 · 7 min read
Market Analysis
The Best Rental Yields in America: 628 Cities Ranked by Observed rent
August 22, 2026 · 8 min read
Market Analysis
Does the 1% Rule Still Work? It Survives in 9 of 628 Markets
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 Final Asking Rent: What 12 Months of Removed Listings Show
August 14, 2026 · 8 min read
Valuation & Accuracy
Condition Is the Blind Spot in Automated Home Valuations
August 13, 2026 · 5 min read
Investing Guides
Best Places to Buy Rental Property in Washington DC (2026)
July 30, 2026 · 4 min read
Investing Guides
Best Places to Buy Rental Property in Idaho (2026)
July 30, 2026 · 6 min read
Investing Guides
Best Places to Buy Rental Property in Mississippi (2026)
July 30, 2026 · 8 min read
Investing Guides
Best Places to Buy Rental Property in Oklahoma (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in Maryland (2026)
July 30, 2026 · 13 min read
Investing Guides
Best Places to Buy Rental Property in Washington (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Michigan (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in Wyoming (2026)
July 30, 2026 · 4 min read
Investing Guides
Best Places to Buy Rental Property in West Virginia (2026)
July 30, 2026 · 6 min read
Investing Guides
Best Places to Buy Rental Property in Kansas (2026)
July 30, 2026 · 8 min read
Investing Guides
Best Places to Buy Rental Property in Louisiana (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in Minnesota (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in Tennessee (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Illinois (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in South Dakota (2026)
July 30, 2026 · 4 min read
Investing Guides
Best Places to Buy Rental Property in Maine (2026)
July 30, 2026 · 6 min read
Investing Guides
Best Places to Buy Rental Property in New Hampshire (2026)
July 30, 2026 · 10 min read
Investing Guides
Best Places to Buy Rental Property in Oregon (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in New Jersey (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Arizona (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Ohio (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in North Dakota (2026)
July 30, 2026 · 6 min read
Investing Guides
Best Places to Buy Rental Property in Delaware (2026)
July 30, 2026 · 5 min read
Investing Guides
Best Places to Buy Rental Property in Iowa (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Wisconsin (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Indiana (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Virginia (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in North Carolina (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Vermont (2026)
July 30, 2026 · 5 min read
Investing Guides
Best Places to Buy Rental Property in Utah (2026)
July 30, 2026 · 5 min read
Investing Guides
Best Places to Buy Rental Property in Arkansas (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Connecticut (2026)
July 30, 2026 · 13 min read
Investing Guides
Best Places to Buy Rental Property in Colorado (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in New York (2026)
July 30, 2026 · 13 min read
Investing Guides
Best Places to Buy Rental Property in Texas (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in Montana (2026)
July 30, 2026 · 6 min read
Investing Guides
Best Places to Buy Rental Property in Nebraska (2026)
July 30, 2026 · 7 min read
Investing Guides
Best Places to Buy Rental Property in Nevada (2026)
July 30, 2026 · 7 min read
Investing Guides
Best Places to Buy Rental Property in Massachusetts (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in South Carolina (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Pennsylvania (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in California (2026)
July 30, 2026 · 14 min read
Investing Guides
Best Places to Buy Rental Property in Rhode Island (2026)
July 30, 2026 · 8 min read
Investing Guides
Best Places to Buy Rental Property in New Mexico (2026)
July 30, 2026 · 6 min read
Investing Guides
Best Places to Buy Rental Property in Kentucky (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Alabama (2026)
July 30, 2026 · 11 min read
Investing Guides
Best Places to Buy Rental Property in Missouri (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Georgia (2026)
July 30, 2026 · 12 min read
Investing Guides
Best Places to Buy Rental Property in Florida (2026)
July 30, 2026 · 15 min read