Should a Law Firm Self-Host Its Case Data?
Should a law firm self-host case data or trust a managed vendor? The answer turns on confidentiality, custody, and exit, not on hosting fashion.
Most law firms should not self-host their case data, but every firm should be able to leave the vendor that holds it inside a week. Those are two different questions and firms confuse them constantly. Self-hosting is about who runs the servers. Data ownership is about who controls the records and whether you can walk. A firm can be fully cloud-hosted and still own its data completely, or self-hosted and still be trapped. The custody of client data is the real issue, and it does not care where the box lives.
The case for not self-hosting
A litigation firm is not an infrastructure company. Running your own database, backups, patching, and security to the standard client confidentiality demands is a real job, and doing it badly is a malpractice exposure, not a cost saving. If your choice is a managed vendor with SOC 2, encryption at rest, and audited backups, versus a partner running Postgres on a box he does not fully understand, the vendor wins. Confidentiality obligations raise the floor on how well infrastructure must be run, and most firms cannot clear that floor alone.
This is the same logic I apply across my own portfolio. I self-host aggressively, but only where I can run it to a real bar. Where I cannot, I rent. A firm evaluating AI-native case management for PI law is usually better served by a vendor who runs the infrastructure well than by an in-house project that competes with billable hours.
The three questions that actually matter
Whether you self-host or not, put these to any vendor before you trust them with case files.
Who can read the data. Encryption at rest is table stakes. Ask who holds the keys, who on the vendor's staff can access records, and whether access is logged. A vendor who cannot answer this precisely is a vendor who has not thought about your obligations.
How you get the data out. This is the one firms skip and regret. You need a complete export: matters, documents, deadlines, notes, and history, in a form you could actually load somewhere else. A report-only export is a trap. I break down the difference in portable data export that is more than a CSV. Test the export before you sign, not when you are trying to leave.
What happens when the vendor changes. Acquisition, price hikes, or a shutdown should not put client data at risk. Every firm should have an exit plan for the vendor before depending on it, because a vendor getting acquired is a when, not an if.
When self-hosting does make sense for a firm
There is a real case for a large firm with dedicated IT and specific data-residency or client mandates. Some enterprise clients require their outside counsel to keep data in a controlled environment, and some jurisdictions impose residency rules a generic cloud region cannot satisfy. In those cases, self-hosting on infrastructure the firm controls is not fashion, it is a requirement. A firm in that position can run its own stack on a provider like HostSSH and keep custody end to end, while still evaluating case software like CaseSolo that can operate on infrastructure the firm owns.
But that is the exception. For the solo practitioner and the mid-size firm, the honest answer is: do not self-host, and do not let that stop you from owning your data. Pick a vendor who runs the servers to a standard you could not match, then hold them to portability and custody so the day you want to leave, you can. Ownership by decision, not by where the box sits.