Properties Overview
The Properties API provides endpoints for managing rental properties and their comprehensive information within the property management system.
Key Concepts
Property Status
Properties expose a lifecycle status:
ACTIVEINACTIVEPENDING
Fortress aggregates occupancy only for ACTIVE properties.
Property Information
Properties are the core entity containing:
- Basic Details: Name, short name, property class, and contact information
- Physical Address: Complete physical location details
- Mailing Address: Separate mailing address if different
- Contact Information: Phone, fax, and email details
- Geographic Data: Latitude, longitude, and timezone information
Property Management
- Organization Association: Each property belongs to an organization
- Timezone Management: Support for different time zones
- Communication Hub: Central contact point for the property
Property Relationships
Properties serve as the central hub for numerous related entities:
- Units: Individual rental units within the property
- Buildings: Physical structures on the property
- Floor Plans: Available unit layouts and specifications
- Households: Current and past residents
- Applications: Rental applications for the property
- Prospects: Potential tenants interested in the property
- Leases: Active and historical lease agreements
- Work Orders: Maintenance and service requests
- Amenities: Property and unit amenities
- Financial Records: Deposits, transactions, and GL entries
- Reports: Property-specific reporting and analytics
Property Configuration
Each property has a single configuration record holding the detail that does not fit the core property record: marketing copy (full description, office hours, pet policy, parking details, amenities), contact routing (email, voice phone, SMS phone), resident-facing links, leasing and application settings (late fee method, allowed lease terms, income requirement, quote expiration), master metered utilities, security deposit interest, service vendors, and site details such as build and renovation dates, access codes and on-site amenities.
A property’s configuration id is the same as its property id, so the record can be read either as a subresource of the property or directly by id.
Three fields flatten a one-to-many relationship into a delimited string:
amenities— comma-and-space separated:"ClubHouse, FitnessCenter, Pool"officeHours— semicolon separated, each entry"<Day> <open>-<close>":"Monday 9:00 AM-6:00 PM; Tuesday 9:00 AM-6:00 PM"allowedLeaseTermMonths— comma separated, distinct values:"6,12,18"
All three are unordered sets. The underlying CDC engine cannot order values inside an
aggregate, so sort client-side if order matters — every officeHours entry carries its day name
for exactly that purpose.
lateFeeMethod and securityDepositSimpleInterestRate are kept as a dated history on the property, so both
report the value in effect today.
Boolean fields are serialised as the strings "true" and "false" rather than JSON booleans. This is
a property of the export pipeline and applies to every boolean across the API — for example
units.isADA and amenities.includedInMarketRent — not just this resource. Parse accordingly.
applicationPortalUrl is only populated while the resident portal is active for the property; availabilityUrl
is always available. quoteExpiration is a duration (SAME_DAY, HOURS_24, HOURS_48, HOURS_72), not a
calendar date. siteBuiltDate and lastRenovationDate are free-text rather than strict dates, so they may
hold a year or a partial date.
Leslie Integration Configuration
Available by RequestEach property can have a Leslie vendor integration configuration, which controls whether the integration is enabled for that property, Leslie’s own identifier for the property (externalPropertyId), and the webhook URL Leslie should call for that property. A derived isConfigured field is true when the configuration is both enabled (isEnabled) and has an externalPropertyId set.
This endpoint is part of our evolving API ecosystem. To explore availability for your integration, please contact our team.