How to Switch Property Management Software Without Losing Your Data

A clean migration takes 6 weeks, three exports, and one accountant call you don't want to skip. Below is the playbook independent operators use to move off AppFolio, Buildium, DoorLoop, or any of the rest without losing leases, history, or owners' trust.

The reason most software migrations go badly isn't the software — it's the sequencing. Trust accounts get migrated before reconciliation. Tenants get notified before auto-pay is re-enrolled. Historical reports get exported the week after access is cancelled. Here's how to avoid all three.

When to switch (and when not to)

Good reasons to switch:

Per-door pricing has crept past your operational value.
The UI/workflow is a daily friction point for your team.
Support response times are blocking you from doing your job.
You've outgrown the tier (or undergrown it — paying for features you don't use).
A feature you need (e.g., commercial CAM, mixed asset classes) doesn't exist in your current tool.

Bad reasons to switch:

You saw a competitor's marketing.
A single bug or release annoyed you.
"It feels expensive" without running the math.
Your accountant prefers a different tool (have a conversation; rarely a sufficient reason on its own).

If your reasons survive a 30-day wait, they're real. Switch.

The 6-week migration timeline

A realistic timeline for a 25–150 door switch. Adjust ±1 week for portfolio complexity.

Week	Focus
-2	Pre-work: Run final reconciliation on old tool. Lock data scope.
1	Set up new tool. Configure chart of accounts, owner entities, vendor master, properties.
2	Import leases & tenants. Use vendor's CSV template. Spot-check.
3	Import financial history. Set cutover date. Reconcile both tools side-by-side.
4	Tenant communication & re-enrollment. New portal, new auto-pay.
5	Parallel run. Run rent collection on new tool; keep old tool read-only.
6	Cutover. Sunset old tool's write access. Cancel after final reports pulled.

Data you must export (with file types)

Before you cancel your old tool, pull these in standard formats. Some tools restrict exports after termination — do this first.

From any property management tool

Properties & units list (CSV with addresses, unit IDs, square footage, rent, deposit on file)
Active leases (CSV with tenant name, dates, rent, deposit, lease PDF link)
Tenant master (CSV with names, contact info, balance, notes)
Owner master (CSV with names, entity, contact, ownership %, distribution preferences)
Vendor master (CSV with name, W-9 status, payment method, default GL account)
Chart of accounts (CSV with account number, name, type)
General ledger / transaction history (CSV or QBO format — pull as far back as your CPA wants)
Trust account balances (PDF + CSV) — by tenant, by property, by owner
Open work orders (CSV with property, status, vendor, dates)
Lease documents (bulk PDF export — usually a zip)
Owner statements (last 12 months) (PDF)
1099 records (last 3 years) (PDF + CSV)
Tenant ledgers (current + 12 months) (PDF — your audit trail)

Tool-specific quirks

AppFolio: Use the export tools under Reports → Custom Export. Lease PDFs are pulled per-lease unless you request bulk via support.
Buildium: Most exports live under Reports. Lease document bulk export goes through support ticket.
DoorLoop: Self-serve exports cover most. Trust balances export via the accounting module.

Trust account migration: the legal piece

This is the part to get right. Trust account migration is where switches go wrong in ways your state regulator notices.

The steps:

Reconcile on the old tool the last full month before cutover. Confirm three-way reconciliation: bank balance = book balance = sum of tenant ledgers.
Pull the trust balance report by tenant on cutover date.
Open the new trust account (or use existing — depends on your bank arrangement).
Import the trust balances as opening balances on the new tool. Some tools accept a CSV import; others require manual entry. Both are auditable.
Transfer the cash if you're changing banks. Wire is cleanest. Reconcile the moment the wire clears.
Reconcile on the new tool before processing any new transaction. This is non-negotiable.

Get your accountant or bookkeeper in the room for steps 4–6. The 1–2 hours of their time is much cheaper than a state audit finding.

Tenant & owner communication template

Send these two emails. Don't skip either.

Tenant email (Day -7 from cutover)

Subject: Your new tenant portal — action required

Hi [Tenant first name],

Starting [DATE], we're moving to a new tenant portal. You'll get an email from [NEW TOOL] inviting you to set up your account.

What you need to do:

Watch for the invite email from [SENDER]. Click "Set up account."

Re-enroll in auto-pay if you used it before. Bank info doesn't transfer — you'll need to add it once.

The old portal will stop accepting payments on [DATE]. Use the new one starting that day.

Your lease, balance, and history all carry over. If you have a payment scheduled, it will process as planned.

Questions: reply here or call [PHONE].

Thanks, [Your name]

Owner email (Day -10 from cutover)

Subject: We're moving to new property management software

Hi [Owner first name],

Heads up: starting [DATE], we'll be running on [NEW TOOL]. Why: [one sentence — e.g., better reporting, more predictable pricing, etc.].

What changes for you:

You'll get a new owner portal invite from [SENDER].

Your monthly statement format will change starting [MONTH]. I'll attach a sample so you know what to expect.

Distributions continue on the same schedule. No bank-account changes on my end.

What doesn't change:

Your account balance, history, ownership records.

Our contract terms and management fees.

Reply if you have questions.

[Your name]

Day-1 / Day-7 / Day-30 checklist

Day 1

First rent collection cycle runs on new tool.
Spot-check 5 random tenant ledgers for accuracy.
Confirm at least one owner statement renders correctly.
Old tool moved to read-only.

Day 7

First week's deposits reconciled against bank.
All maintenance work orders carried over and assigned.
Auto-pay re-enrollment rate ≥ 80% of prior baseline.
Support tickets with new vendor: tracked, none escalated.

Day 30

Trust account three-way reconciliation: clean.
Owner statements sent — confirmed receipt.
Auto-pay enrollment back to baseline (90%+ of pre-switch rate).
Any historical reports you'll ever need: pulled.
Old tool: cancelled.

Common migration mistakes

Canceling the old tool before you've pulled every report. Once you cancel, access shortens fast. Pull everything first.
Migrating during peak turnover season. Avoid May–August migrations for residential. Q4/Q1 are calmer.
Skipping the parallel run. Running both tools for a week catches data inconsistencies before they bite.
Trusting the import without spot-checks. Every importer leaves some fields empty. Spot-check 5–10% manually.
Forgetting the bank. Trust account changes may require bank paperwork. Lead time can be 2 weeks.
Underestimating tenant communication. Auto-pay drop-off is the most painful cost of a bad switch.

FAQ

How long does a typical migration really take? 4 weeks if you're under 50 doors with clean data. 6–8 weeks at 50–150 doors. 10+ weeks above that or with messy historical data.

Can I migrate without telling tenants? No. The portal change is visible immediately. Communicate before they discover it.

What happens to tenant auto-pay? It doesn't transfer. Tenants have to re-enroll. Expect 60 days to fully recover enrollment.

Should I keep the old tool's data after cancellation? Yes — at minimum the exports listed above. Store them somewhere durable (not just on your laptop). Your future-self CPA will need them.

What if I'm in the middle of an eviction or lawsuit? Wait. Don't migrate active legal matters; finish them on the old tool, then migrate.

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