DoorLoop is a modern, all-in-one property management and accounting platform built for residential, commercial, and mixed portfolios. It covers the full PM lifecycle: lease creation and e-signatures, online rent collection with ACH and card support, automated late-fee posting, maintenance request routing, owner portals, tenant portals, and a full accounting engine with bank reconciliation and financial reporting. Unlike legacy PM platforms that require expensive partner agreements to access their APIs, DoorLoop provides a documented public REST API and a deep Zapier integration — making genuine two-way automations immediately accessible without a vendor approval process. You can read and write lease records, tenant data, payment events, maintenance requests, and accounting entries programmatically, turning DoorLoop from a record-keeping system into the live operational data layer beneath your portfolio's AI workflows.
Owner-operators and emerging CRE sponsors who manage their own portfolios — residential, light commercial, mixed-use, or some combination of all three — often run DoorLoop as the central operating system for everything that touches tenants and cash. The platform's strength is the speed at which a small team can get the full PM stack online: leases, ACH collection, owner reporting, and maintenance management, all in one interface without stitching together four separate tools.
Security, compliance, and vendor evaluation frameworks for AI operations
Automate document collection, deadline tracking, and stakeholder updates
Real-time dashboard showing deal progress and expected commissions
Discover how DoorLoop powers real estate automation workflows
DoorLoop exposes a developer-accessible REST API covering properties, units, leases, tenants, payments, maintenance requests, and accounting transactions. A Zapier integration with pre-built triggers and actions extends automation access to users who prefer a no-code layer.
Having both an API and Zapier coverage means PM teams of any technical level can automate: a solo operator uses Zapier triggers for new lease events, while a larger team builds custom n8n workflows against the same REST endpoints. Both paths produce real two-way automations without screen-scraping or CSV exports.
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Ready-to-deploy workflows powered by DoorLoop + NextAutomation
On the first of each month, pull prior-month financials from DoorLoop's accounting API for each property, compute period-over-period NOI variance, generate an AI-written narrative that explains what drove the change, and deliver the combined statement to each owner without manual assembly.
1n8n scheduled trigger fires on the 1st at 6 AM
2Query DoorLoop API: pull all properties and their owner associations
3For each property, retrieve prior month income, expense, and net income via the accounting endpoint
4Calculate NOI delta vs. prior month and vs. underwriting target if configured
Owner statements go out on the 1st with a clear narrative explanation already written — no PM staff assembling packets manually. Passive equity partners receive a professionally packaged monthly report that explains the numbers, not just shows them. Delinquency and cost surprises are surfaced in the narrative before owners notice them independently.
Connect DoorLoop to your workflows with powerful triggers and actions
Fires when a tenant payment clears in DoorLoop — ACH bank transfer, card payment, or manually recorded cash receipt. Available via API poll or Zapier.
When rent is confirmed for a unit, send the tenant a payment receipt, update the owner's real-time cashflow dashboard, and remove the unit from the active delinquency watch list.
Fires when a new lease record is created in DoorLoop — either by PM staff or via API write after application approval.
On new lease creation, trigger a tenant onboarding sequence: welcome email, utility-setup instructions, building rules document, and move-in checklist.
Daily query against DoorLoop's lease endpoints filtered by end date to surface expirations at the 90-, 60-, and 30-day mark.
Enroll each expiring lease in the three-touchpoint renewal campaign automatically when it first crosses the 90-day threshold.
Fires when a new maintenance request or work order is created in DoorLoop by a tenant, PM staff member, or API call.
Trigger AI urgency classification and vendor routing the moment a new work order appears, before any PM reviews the queue.
Daily query against DoorLoop payment records returns all units with a past-due balance, enabling portfolio-wide delinquency monitoring.
Surface newly delinquent tenants each morning and enroll them in the appropriate outreach stage based on how many days past due and payment history.
Fires when a new tenant record is created in DoorLoop or an existing record is modified — move-in date, contact info, or status change.
On move-in confirmation, auto-dispatch a welcome package with building access instructions, emergency contact list, and a link to the tenant portal.
Create a new lease record in DoorLoop or update an existing lease — rent amount, end date, deposit, or escalation clause.
After a DocuSign renewal is countersigned, push the updated rent amount and new lease end date back into DoorLoop without manual re-entry.
Record income or expense transactions against a property's accounting ledger in DoorLoop — rent adjustments, vendor invoices, owner draws.
When a vendor invoice is approved in your AP workflow, post the expense to the correct property ledger in DoorLoop and categorize it to the matching Chart of Accounts entry.
Create a new maintenance work order in DoorLoop assigned to a specific vendor or PM staff member, with status and cost tracking from creation.
After a lease expires with no renewal, automatically create a unit-turn work order for make-ready inspection, paint, and carpet assessment.
Push a PDF or document into DoorLoop's owner or tenant document library programmatically so it appears in their portal without a manual upload step.
After the AI-enhanced monthly statement is assembled, push the PDF into each owner's DoorLoop document library alongside the payment history they already see in the portal.
Create a new tenant in DoorLoop or update contact details, notes, or unit assignment on an existing tenant record.
When a rental application clears external screening, push the approved applicant into DoorLoop as a tenant record staged for lease creation — no manual data entry between systems.
Append a timestamped note to a DoorLoop tenant record via API — communication log entries, escalation history, or AI-generated interaction summaries.
Each time an automated late notice is sent, write a note to the DoorLoop tenant record with the date, message type, and outstanding balance at time of send — building a legally relevant communication log automatically.
Get started in approximately 20 minutes to authenticate and confirm API access; 2-3 hours to build delinquency monitoring and owner statement delivery end-to-end
Log into DoorLoop as an account administrator. Navigate to Settings → Integrations → API and create a new API key. Copy the key immediately — DoorLoop displays it only once at creation. Store it in your password manager or secrets vault. The key is passed as a Bearer token in the Authorization header of every API call.
Create one API key per integration purpose (e.g., a separate key for n8n and for any Zapier zaps). This lets you revoke access for a single integration without disrupting others if a key is ever exposed.
In n8n, create a single HTTP Request node targeting the DoorLoop API base URL. Set the Authorization header to 'Bearer {your-api-key}'. Call the properties endpoint to retrieve your property list. If the response returns your properties as a JSON array, authentication is working correctly. Note the property IDs — you will reference them in every subsequent workflow.
Reference the DoorLoop Developer Documentation (developer.doorloop.com) for the full endpoint list and request/response schemas. The documentation is publicly accessible and covers all major objects: properties, units, leases, tenants, payments, work orders, and accounting.
Run API calls to retrieve your full property list, unit IDs under each property, owner associations, and vendor records. Store this reference mapping in a Google Sheet that your workflows can look up at runtime. This avoids querying the DoorLoop API for structural data on every workflow execution and keeps your integration fast and within API rate limits.
If your portfolio has more than 15 properties, run the initial mapping pull once and store it as a lookup table. Refresh the mapping weekly via a scheduled workflow rather than on every automation run.
Create a scheduled n8n workflow that runs at 7 AM daily. It queries the DoorLoop payment API for all leases with an outstanding balance past the due date. Parse the results to extract tenant name, unit, days past due, and outstanding amount. Post a formatted summary to a Slack channel visible to your asset management team. Run this read-only workflow for three to five days to verify data accuracy before wiring any automated tenant outreach.
Start with a read-only verification pass. Confirm that the units flagged as delinquent match what you see manually in DoorLoop before trusting the data pipe for automated communications. A false-positive delinquency notice sent to a current tenant is a relationship problem that is harder to fix than a slow start.
Build the monthly owner statement workflow: on the 1st at 6 AM, call DoorLoop's accounting API to pull prior-month income and expense data by property. Pass the financials to an AI node with a structured prompt requesting a variance commentary (NOI delta, delinquency rate, maintenance cost contribution). Assemble the owner statement PDF — either retrieved from DoorLoop's reporting endpoint or generated externally — attach the AI commentary, and send to each owner via email.
Pass explicit numeric values to the AI prompt — gross rent collected, maintenance spend, net to owner — rather than raw JSON transaction arrays. The AI produces cleaner, more accurate commentary when it receives pre-computed summary figures rather than raw ledger data to interpret.
Create a daily workflow running at 8 AM that queries DoorLoop for leases expiring in 90, 60, and 30 days. Use a Google Sheet as the enrollment tracker — log each lease ID and which outreach stage it has already received. Send the appropriate touchpoint for leases hitting each threshold for the first time, skipping leases already enrolled. When a renewal is confirmed, create the new lease record in DoorLoop via API write to close the loop.
Use the tenant's unit address and exact lease end date in every renewal email subject line and opening sentence. Generic renewal notices get low open rates. Personalized messages that reference 'your apartment at 142 Oak Street' and 'your lease ending February 28' consistently outperform by a wide margin.
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