Backup For
Real Estate Appraisal Firms

The files a real-estate appraisal firm can't afford to lose

An appraisal firm generates deliverables that are difficult or impossible to reproduce once conditions change. The subject property may have sold, been renovated, or changed hands by the time a question arises. The comparable sales data reflects a market snapshot that shifts daily. The original documentation is the only record of the opinion as it existed at the time of the assignment.

• Completed appraisal reports in their final delivered form, including PDF exports and the underlying form or report file, along with draft revisions and any amendment or correction copies issued after delivery.
• Workfiles containing the supporting documentation assembled for each assignment: field notes, data sources consulted, calculations, addenda, and correspondence relevant to the appraisal.
• Subject property photos taken during the inspection visit, including interior and exterior shots, and comparable property photos pulled from public sources or taken in the field, organized by order number and assignment date. Once the subject property changes or the comp transaction is no longer available at those conditions, those images cannot be re-shot.
• Sketches and floor plans produced for the subject property, whether drawn with sketch software or captured as image files.
• Market data and comparable sales exports pulled from MLS systems, public records, or data services at the time of the assignment, reflecting the market conditions on that specific effective date.
• Engagement letters, order records, and assignment instructions from AMCs, lenders, attorneys, or private clients.
• Invoices and payment records for every completed assignment.
• QuickBooks or other accounting files reflecting the financial history of the firm.

The appraisal report is the core deliverable of the firm. It is an independent valuation opinion, not a listing, not a transaction file, and not a loan document. Every other file in the workfile exists to support and document that opinion. Losing the report archive, or losing the photos and data that substantiate the conclusions in it, leaves the firm without the evidence of the work it performed.

Where backup gaps hide in an appraisal business

• Appraisal report and forms software treated as the record. Appraisal report and forms software stores the files you create within its own environment, but the working copy exported to your local machine, photos attached before upload, and older assignments migrated from a previous platform may not all have complete coverage inside a single tool. The file sitting on your office PC or laptop is a separate question from what the software platform holds.
• Subject and comp photos living only on the camera or phone. Many appraisers capture subject property photos on a dedicated camera or a smartphone and transfer them to the office PC before or after attaching them to the report. During that transfer window the photos exist on one device only. After the transfer, if the backup scope does not include the right folder on the right machine, those images may have no protected copy at all. Comp photos downloaded from MLS or public sources face the same risk if they are saved to a local folder that is not included in the backup scope.
• OneDrive or cloud sync mistaken for backup. Sync keeps your files accessible across devices, but it also propagates deletions and overwrites across every connected machine instantly. A file accidentally deleted or corrupted on one device will sync that change everywhere within seconds. Sync and backup are different tools that solve different problems. See our page on cloud sync vs backup for a plain-language comparison.
• Sketches and form templates with no separate copy. Floor plan sketches and custom form templates built up over years of practice may live in a single folder on one machine, never having been treated as files that need their own backup attention. A hardware failure removes them permanently.
• Order and engagement records held only inside an AMC or lender portal. Assignment instructions, scope-of-work confirmations, and order history stored inside an AMC's web portal belong to that platform, not to your firm. If access to that account lapses or the portal changes its retention policies, that order history may not be retrievable on your timeline or in the form you need it.
• No tested restore process. A backup that has never been tested is a backup of unknown reliability. Many appraisal firms have backup software installed but have never confirmed they can retrieve a specific report and its associated workfile photos from a specific assignment date.

Appraisers frequently work alongside real estate agents and mortgage loan officers in the same transaction, but the files each party is responsible for protecting are different. An agent manages listing files, transaction records, and client communications. A loan officer or mortgage broker manages loan applications, disclosures, and underwriting documentation. An appraiser produces an independent valuation opinion and the workfile that supports it. The backup risk profile for each role is distinct. See our page on backup for real estate agents and brokers and our page on backup for mortgage brokers and loan officers for a comparison of how those file risks differ from yours.

A backup standard for real-estate appraisal firms

These six points reflect the core backup principles that CISA recommends for small businesses, adapted to how an appraisal firm actually generates and stores its files:

• A separate, off-site copy that does not depend on your working machine. The 3-2-1 model calls for at least three copies of data on two different media types, with one stored off-site. If your only backup lives on the same PC that holds your reports and workfiles, a hardware failure, theft, or fire removes both copies at once.
• Enough version history to recover from a delayed discovery. Ransomware and accidental overwrites are not always noticed immediately. If your backup window is only 24 hours, a problem discovered several days later may leave you without a clean version to restore. A version history of several weeks gives you a realistic recovery window for a working appraisal firm.
• Encryption in transit and at rest. Completed appraisal reports contain detailed information about private residences and commercial properties, including condition, layout, and market-value conclusions. CISA recommends that small-business sensitive data be encrypted both during transfer and in storage.
• Monitoring and failure alerts. A backup job that stops running silently provides no protection and no warning. Monitored backup means a failed or missed job gets flagged so you can address it before weeks pass without coverage.
• Restore testing on a regular schedule. CISA explicitly recommends testing restores so that recovery is confirmed before you need it under pressure. For an appraisal firm, a practical test is retrieving a completed report and its associated photos and workfile documents from an assignment completed several months ago and confirming the files are complete and open correctly.
• A named recovery owner and a priority file list. Someone in your firm should know where backups are stored, how to initiate a restore, and which files to recover first. For a small appraisal firm, that priority list likely starts with the current month's completed reports, the workfiles supporting those assignments, and the accounting files.

If you are unsure how your current setup measures against these points, the small-business backup checklist is a printable two-minute self-check that walks through each one.