The short answer. There is no single best tool, because multifamily investors use software for different jobs. Rent comps and market surveys: HelloData. Turning a rent roll and operating statement into an underwriting model: Radix, Cactus. Running the pipeline and the committee approval: Dealpath. Running the building after you own it: AppFolio, Entrata. One property, from the documents to a sourced answer: Titleman. Find the step that costs you the most time and compare tools inside that row only.
Published by Titleman, which makes one of the tools below. A multifamily deal is decided by a handful of figures that the seller's package tends to state in its own favor: the rent the units will really get, the expenses a buyer will really carry, and what the next owner's tax and insurance bills will be. Quoted descriptions of other companies are the words on each company's own page, read on 19 October 2026 and linked; the lines on fit and limits are our reading of those pages. Nothing here is a ranking: we have not run these products on the same property, so the test that decides is one deal you already know the answer to, described near the end.
Updated 19 October 2026. Written by the Titleman team. AI was used to draft this page. Every quoted description of another company was checked against that company's own page on 19 October 2026. The lines on fit and limits are our reading, not the vendor's words.
What multifamily investors have to get right
Software is only useful if it helps with the questions that move the price. These six come up on almost every apartment acquisition.
- Loss to lease. How far below achievable market rent are the in-place rents, and how quickly can that gap close given when leases expire? The rent roll holds the answer, and how to read a rent roll covers what to look for.
- Concessions and effective rent. Does the rent roll show gross rent or what tenants actually pay after free months and discounts?
- Expenses. Which lines in the T-12 look light: repairs, payroll, management fee, turnover? Check that the statement carries a management fee at a level a third-party manager would charge.
- Property tax after the sale. Does the local assessor reset the assessed value to your purchase price, and what does that do to the tax line?
- Insurance. What changed at the last renewal, and what is the real quote for this building and location?
- The renovation premium. For a value-add deal: what does a renovated unit cost, what rent does it achieve over a classic unit, and how many months is the unit off the market?
The gap between the in-place numbers and the numbers the package uses to sell is covered in pro forma versus in-place NOI.
The tools at a glance
| Job | Tools | Use it when | Where the row stops |
|---|---|---|---|
| Rent comps and market surveys | HelloData | You need rents for comparable buildings without calling each one | A comp is a rent asked, not the rent in your building's leases |
| Underwriting from the documents | Radix, Cactus | Analysts retype rent rolls and operating statements into a model | Works from the documents you give it; a bad rent roll gives a bad model |
| Pipeline and approvals | Dealpath | Several deals and several people need one place and one record | A workflow system, not a source of market data |
| Running the building | AppFolio, Entrata | You own units and need leasing, payments and maintenance | Tells you what a building does, not whether to buy the next one |
| One property, sourced | Titleman | You want one building analyzed from the records and your documents, with a source beside each figure | Not a pipeline system or a property management system |
The tools, as their makers describe them
Each tool below is linked to its maker. The quoted words come from the page we read; where a page gave no clean description of the product, we describe it in our own words and say so.
HelloData
HelloData is aimed at rent comps and market surveys for multifamily teams. Its homepage speaks of "market surveys & deal analysis" for multifamily professionals, and its pages also cover underwriting and rent-roll formatting.
- Fits: investors and operators who need comparable rents across many buildings.
- Check or limit: its data comes mainly from property websites, with listing sites as a backup, and it amortizes concessions into effective rent, assuming a 12-month lease unless the offer says otherwise. Check how it handles concessions in your market.
- Free plan or trial: free trial offered; its pricing page lists per-user plans, and we do not repeat the figures.
Radix
Radix offers software to "Evaluate, invest, optimize, and list properties". Its underwriting product turns operating statements and rent rolls into standardized data and models with sensitivity analysis, and it also does comp benchmarking and rent-upside analysis.
- Fits: multifamily owners and operators who want the documents standardized before modeling.
- Check or limit: no limits stated on the page. Test it on a rent roll with concessions and count the cells a person has to fix.
- Free plan or trial: not stated; the page offers a demo.
Dealpath
Dealpath calls itself "The AI-Powered Operating System for Real Estate Investing". It covers the deal pipeline, underwriting comparison, diligence tasks and committee approval, plus an exchange for private listings.
- Fits: investment teams that run several deals at once.
- Check or limit: its page does not name multifamily specifically, and its market data comes from your own deal flow and broker feeds, not from a rent-comp feed.
- Free plan or trial: not stated; the page offers a demo.
Cactus
Cactus describes itself as "AI for ambitious Real Estate teams." It ties each underwriting input to its source in the offering memorandum, financials or comps, and exports Excel models with the formulas intact.
- Fits: acquisitions teams that want a source beside every input and a spreadsheet they can edit.
- Check or limit: the page says it is available now for multifamily and self-storage acquisitions and new development, with other asset classes in beta.
- Free plan or trial: 7-day free trial per its pricing page; prices not shown.
AppFolio
AppFolio is property and investment management software with AI workflow automation and portals for residents, owners and investors; its page title reads "Move Beyond Property Management Software."
- Fits: owners and managers running multifamily and other residential portfolios.
- Check or limit: a tool for operating buildings you hold. It does not analyze a building you are considering.
- Free plan or trial: not stated; the page offers a free demo.
Entrata
Entrata describes "The next era of Autonomous Property Management", with accounting, leasing, renewals, maintenance and payments plus AI agents for leasing, maintenance and renewals.
- Fits: operators of apartment portfolios that want one operating system.
- Check or limit: the page says its AI covers every property type, so confirm which agents are live for your asset class. Like AppFolio, it is about running the asset.
- Free plan or trial: not stated; the page offers a demo.
Where Titleman fits, and where another tool is better
Where Titleman fits. Titleman works on one property at a time. Attach the T-12, the rent roll and the offering memorandum; Underwriting reads them, reconciles them against each other and underwrites from your figures, with each figure pinned to its source. It returns an investment committee memo and, on request, an Excel model. Scout searches a territory against your buy box and returns a ranked shortlist with the owner behind each candidate, drawing on 2,100+ sources. It is built for commercial and multifamily property in the United States.
Where another tool is better. If your slowest step is pulling rents for twenty comparable buildings, a rent-comp product such as HelloData is built for that and Titleman is not a substitute. If the problem is moving six deals through a committee, you want a pipeline system such as Dealpath. And once you own the building, AppFolio or Entrata, not an analysis tool, runs it.
What none of these replace
A walk through the units and a property condition report. A title search and survey. A licensed appraisal where your lender requires one: Titleman produces an opinion of value, not an appraisal. Your insurance broker's quote for the building. And a tax adviser on how the assessor will treat the sale.
How to choose: one deal you already know
Take a building you bought or passed on, where you know how the first year went. Give it to each tool you are considering and ask four things. Did it find the same expenses the first year showed? Did its rent match what you actually got? Does every figure say where it came from? And when the documents were thin, did it say so or fill the gap?
Frequently asked questions
What are the best AI tools for multifamily investors in 2026?
It depends on the step that costs you the most time. Rent comps and market surveys, underwriting from a rent roll, pipeline management and building operations are four different jobs with different tools. Pick the row that matches your slowest step.
What software do multifamily investors use to underwrite a deal?
Tools that read the rent roll and the operating statement and build a model from them, such as Radix or Cactus, and tools that analyze one property from the records and your documents, such as Titleman.
Can AI underwrite a multifamily deal?
AI can read the documents, build the model and list what does not tie. It cannot see the building or know the neighborhood, and a figure with no named source should be treated as unverified. The decision to buy stays with you.
How do multifamily investors find rent comps?
Either by calling the buildings or by using a rent-comp product that collects asking rents from property websites. Asking rents differ from lease rents, so check how a product treats concessions.
Where does Titleman fit for a multifamily investor?
Titleman analyzes one multifamily property at a time from your documents and the property record, and searches a territory for candidates with Scout. It is not a rent-comp feed, a pipeline system or a property management system.