Part of Affordable housing property management software
How Fortress OS Helps Manage Affordable Housing Units

Fortress OS helps you manage affordable housing units by keeping compliance packets, resident files, rent roll, reports, and screening in one system. It supports LIHTC, HUD, RD, HOME, Project-Based, Layered, and local programs, and it connects to Sage Intacct for accounting and TransUnion for screening. A managed compliance team is available when you want one.
Key takeaways
Compliance packets upload straight into Fortress OS, so every document and review status for a household lives in one file.
The Manage Rent Roll screen shows lease dates, prior and current rent, and subsidy rent, plus set-aside and rent limits on affordable properties.
Fortress OS runs LIHTC, HUD, RD, HOME, Project-Based, Layered, and local programs in one platform with no extra modules.
Sage Intacct stays your general ledger, and TransUnion screening runs from the application with your team making the decision.
Fortress Compliance, the managed review service, is optional. Teams that review packets well in house can skip it.
Fortress OS is property management software for teams that manage affordable housing units across LIHTC (Low-Income Housing Tax Credit), HUD (U.S. Department of Housing and Urban Development), and RD (USDA Rural Development) programs. We built it for affordable portfolios first, and it is our affordable housing property management software.
How does Fortress OS keep compliance packets in one place?
Packets upload straight into Fortress OS, so nobody logs into a second portal to hand off a file. Every document and review status for a household sits in one file, so there is no email chain to chase.
A Compliance Summary shows which packets still need review. Your team opens a household straight from the queue. The compliance list exports to CSV or PDF when an owner or auditor asks for it.
Each household also has one Resident Profile. Activity, documents, ledger, and lease data sit on tabs in the same place. Our affordable housing compliance guide covers the rules behind those packets.
Some teams want help with the review itself. Fortress Compliance is an optional managed service. A compliance team works inside your Fortress OS instance, with a dedicated representative per customer.
Move-in and initial reviews take 48 hours. Final packets, recerts, interims, move-outs, gross rent, and vacates take 5 business days.
How do you manage affordable housing units in one view?
You manage every household from the Manage Rent Roll screen. It shows each household with its lease end date, an under-eviction flag, prior leased rent, current leased rent, and subsidy rent. Subsidy rent sits next to prior and current leased rent, so one row shows the full rent.
On affordable properties the screen also shows set-aside, gross rent limit, net max rent, and utility allowance. You can sort, search, and filter the columns, and totals show in a footer. Add the columns you want and Fortress OS remembers your column picks on that computer. The rent roll exports to CSV.
The reporting page lists Portfolio Summary, Rent Roll, Activity Summary, Delinquency, and RD 3560-7. Schedule any of them daily, weekly, or monthly and they arrive by email as CSV or Excel. Portfolio Summary lines up occupancy, collections, and vacancy the same way for HUD, RD, and LIHTC. That helps when one owner runs all three.
What has changed since 2022?
Since 2022, Fortress OS has added support for more programs and moved applications online. Fortress OS now runs LIHTC, HUD, RD, HOME, Project-Based, Layered, and local programs, all in one platform with no extra modules.
HUD gets 50059 workflows and recertifications. RD gets purpose-built 3560-7 budgeting. Layered properties run without duplicate entry.
Fortress OS is compliant with HOTMA (the Housing Opportunity Through Modernization Act) for LIHTC, HUD, and RD programs. Our post on what HOTMA changes explains the rule.
Applicants now complete applications, upload documents, and e-sign through MyFortress, and your team reviews them in Fortress OS applications.
Elmington's AffordaPortal is one example. According to the Elmington case study, 50% of applicants complete the application in one sitting.
The same case study reports that applications dropped from 3 to 7 days to under 1 hour. File errors fell 75%. File approvals went from 2 weeks to 3 days.
Fortress OS includes unlimited two-way texting, a resident portal, in-app walk-throughs, and a permanent training property at no extra cost. Pricing is all-in, and every cost shows up front. Our own benchmark for automation is 3 to 5 hours saved per week per employee.
How do Sage Intacct and TransUnion fit in?
Sage Intacct stays your general ledger and TransUnion runs applicant screening. Fortress OS connects to both. It is the property-level subledger and runs resident ledgers, charges, payments, and deposits.
Deposit journal entries post once a deposit is made. Final account statements for prior residents go over so refunds can be paid. General ledger balances come back for CAM (common area maintenance).
The Sage Marketplace listing describes real-time data on deposits and final account statements, and monthly data on financial performance. The Sage Intacct integration page has the details. Our post on Sage Intacct for property management has more.
Screening runs through TransUnion. Staff submit screening from the application using details Fortress OS already holds. The result and a recommendation land on the applicant's Credit and Criminal Status tab. You bring your own TransUnion account, and each property has its own code.
Your team decides: approved, approved with conditions, or declined. Fortress OS does not score or decide anything. It generates the adverse action letter, and only staff with the screening permission can request screening. See Fortress OS screenings and the TransUnion integration.
Is Fortress OS the right fit for your portfolio?
Fortress OS fits if affordable housing is a real part of your portfolio. Fortress OS is built for affordable programs, so an owner with only market-rate buildings will use a small slice of it.
The managed compliance service is optional too. If your team already reviews packets well, skip Fortress Compliance and use the software alone. If you are weighing platforms, start with what makes affordable housing software useful.
· Founder & CEO
Scaled a Nashville affordable housing operation, couldn't find a system built for it, so she built one.
Frequently asked questions
Quick answers to what people ask about this topic. Still curious? Talk to our team.
Contact UsWhat does it mean to manage affordable housing units in software?
It means one system holds the household files, recertifications, rent limits, and subsidy rent that LIHTC, HUD, and RD properties require, next to normal leasing and accounting work. Fortress OS treats affordable housing as its core.
How does Fortress OS handle compliance packets?
Packets upload straight into Fortress OS, so nobody logs into a second portal to hand off a file. Every document and review status for a household sits in one file. A Compliance Summary shows which packets still need review, and the list exports to CSV or PDF.
Which affordable housing programs does Fortress OS support?
Fortress OS supports LIHTC, HUD, RD, HOME, Project-Based, Layered, and local programs, all in one platform with no extra modules. HUD gets 50059 workflows and recertifications. RD gets 3560-7 budgeting. Fortress OS is HOTMA-compliant for LIHTC, HUD, and RD programs.
Does Fortress OS replace Sage Intacct?
No. Sage Intacct stays your general ledger. Fortress OS is the property-level subledger and runs resident ledgers, charges, payments, and deposits. Deposit journal entries post once a deposit is made, and final account statements for prior residents go over so refunds can be paid.
How does applicant screening work in Fortress OS?
Staff submit screening from the application through TransUnion, using details Fortress OS already holds. The result and a recommendation land on the applicant's Credit and Criminal Status tab. Your team decides, and Fortress OS generates the adverse action letter. You bring your own TransUnion account.
What reports can I run in Fortress OS?
You can run Portfolio Summary, Rent Roll, Activity Summary, Delinquency, and RD 3560-7 reports. Any of them can be scheduled daily, weekly, or monthly and emailed as CSV or Excel. Portfolio Summary lines up occupancy, collections, and vacancy the same way for HUD, RD, and LIHTC.
Is Fortress Compliance required?
No. Fortress Compliance is an optional managed service. A dedicated compliance team works inside your Fortress OS instance. Move-in and initial reviews take 48 hours. Final packets, recerts, interims, move-outs, gross rent, and vacates take 5 business days.
Related resources
Affordable Housing Property Management Software
How Fortress OS runs LIHTC, HUD, RD, and Layered portfolios.
Fortress Compliance
The optional managed compliance service that works inside your instance.
Affordable Housing Compliance Guide
The rules behind compliance packets, recerts, and file reviews.
What Makes Affordable Housing Software Useful?
What to look for when you compare affordable housing platforms.
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