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SPECIFICTION
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One by Lessen

lessen.com

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Spec score 7.4 #17 of 25 in Property Maintenance Software

What it is

One by Lessen manages property and facility maintenance from work order creation through vendor sourcing and invoicing. It is designed for owners and managers of large, distributed residential and commercial portfolios, as well as property managers, technicians, vendors, and portfolio owners. The client portal covers work orders, data insights, reporting, cost controls, asset inventory, compliance management, and open APIs. Vendor tools handle work orders and projects, proposals, invoices, communications, task priorities, and scorecards.

One Insite helps property managers assign, schedule, track, and optimize technician workflows, with rule- and capacity-based dispatch recommendations and lifecycle cost controls. One Onsite supports vendor jobs, routes, in-route notifications, and property and issue details. One Maintenance lets residents submit requests and receive updates on arrivals, status, and approvals. Commercial asset tools include QR code tagging, preventive maintenance, facility management, and inventory for repair-or-replace decisions. The product runs on web, Android, and iOS, with API access. Lessen says support is available 24/7 through the client portal, phone, or email. Pricing is paid and available on request; prospective customers are directed to contact sales for a demo.

Spec sheet

Purpose
One by Lessen manages property and facility maintenance across the project journey, from work order creation through vendor sourcing and invoicing.Read 7 Oct 2026 · lessen.com
Product
One by Lessen manages property and facility maintenance from work order creation through vendor sourcing and invoicing.Read 7 Oct 2026 · lessen.com
Audience
It is designed for owners and managers of large, distributed residential and commercial real estate portfolios, including property managers, technicians, vendors, and portfolio owners.Read 7 Oct 2026 · lessen.com
Integrations
Lessen announced an integration with HappyCo that lets shared customers initiate, manage, and track maintenance, repairs, and turns through connected workflows.Read 7 Oct 2026 · lessen.com
Mobile apps
One Insite helps property managers assign, track, schedule, and optimize technician work; One Onsite helps vendors manage jobs and routes; One Maintenance lets residents submit work orders and track status.Read 7 Oct 2026 · lessen.com
Security
Lessen’s security policy says it uses an ongoing risk management process and SSL transmission encryption up to 256-bit, while noting it cannot guarantee security of information transmitted over the internet.Read 7 Oct 2026 · lessen.com
Support
Lessen says its support team is available 24/7 through the client portal, phone, or email.Read 7 Oct 2026 · lessen.com
Headquarters
Scottsdale, Arizona, United StatesRead 28 Sep 2026 · lessen.com
Founded
2019Read 28 Sep 2026 · lessen.com
Assets
Commercial asset features include asset collection, QR code tagging, preventive maintenance, digital facility management, and inventory for repair-or-replace decisions.Read 7 Oct 2026 · lessen.com
Client portal
The client portal supports work order management, data-backed decisions, automated cost controls, asset inventory, compliance management, and open APIs.Read 7 Oct 2026 · lessen.com
Dispatch and budget
One Insite lets property managers assign, track, schedule, and optimize technician workflows, with rule-based and capacity-based vendor dispatch recommendations and lifecycle cost controls.Read 7 Oct 2026 · lessen.com
Features
The Client Portal includes work order management, data insights, reporting, cost controls, asset management, compliance management, and open APIs.Read 7 Oct 2026 · lessen.com
Field work
One Onsite helps vendors manage daily jobs, plan routes, receive in-route notifications, and access property and issue details.Read 7 Oct 2026 · lessen.com
Getting started
The product page directs prospective customers to contact sales to schedule a demo.Read 7 Oct 2026 · lessen.com
Open APIs
The product page describes open APIs for customer integrations.Read 7 Oct 2026 · lessen.com
Resident app
One Maintenance lets residents submit service requests and receive updates on arrival times, work order status, and approvals.Read 7 Oct 2026 · lessen.com
Scale
Lessen says the platform is built to support clients managing over 1 million properties and gives access to a nationwide network of more than 30,000 vetted vendors.Read 7 Oct 2026 · lessen.com
Security and compliance
The product page lists compliance management as a platform feature but does not name a security certification.Read 7 Oct 2026 · lessen.com
Vendor portal
The vendor portal supports work orders and projects, proposals and invoices, communications, task prioritization, and vendor scorecards.Read 7 Oct 2026 · lessen.com
Vendor tools
The Vendor Portal supports work orders and projects, proposals, invoices, communications, prioritization, and vendor scorecards.Read 7 Oct 2026 · lessen.com

Strong points and limits

Strong points

  • Covers work orders through vendor sourcing and invoicing.
  • Includes vendor dispatch recommendations based on rules and capacity.
  • Resident app supports requests and status updates.
  • Lists open APIs and compliance management.
  • Support is available 24/7 through three channels.

Limits

  • Pricing is available on request.
  • Prospective customers are directed to contact sales for a demo.
  • No security certification is named.

Who it suits

It suits owners and managers of large, distributed residential or commercial portfolios that coordinate maintenance across staff, vendors, and residents. Its portals and mobile tools serve those different roles in the work-order process.

Verdict

One by Lessen brings resident requests, vendor workflows, dispatch, and asset management into a maintenance platform. Buyers should plan to contact sales for pricing and a demo; the product page names no security certification.

Where Specifiction places it

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