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AI vendor due-diligence checklist

Florida Bar Ethics Opinion 24-1 requires a lawyer to investigate an AI provider before entrusting client information to it. These are the questions that follow from it, each anchored to the rule that requires it, with room to record what the vendor actually said.

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17 questions7 sectionsUpdated August 2026

What the opinions say

Opinion 24-1 permits Florida lawyers to use generative AI, subject to existing duties of confidentiality, competence, and supervision. On where the data sits, it is direct:

“Confidentiality concerns may be mitigated by use of an in-house generative AI rather than an outside generative AI where the data is hosted and stored by a third-party.”

Florida Bar Ethics Opinion 24-1

On consent, the opinion draws a line that has practical consequences for how a firm operates day to day. Where a tool discloses confidential information to a third party, it recommends obtaining the client’s informed consent. Where it does not:

“If the use of a generative AI program does not involve the disclosure of confidential information to a third-party, a lawyer is not required to obtain a client’s informed consent.”

Florida Bar Ethics Opinion 24-1

ABA Formal Opinion 512 takes a firmer national position, treating client consent as required rather than recommended, and stating that boilerplate consent language in an engagement letter is not sufficient for this purpose. Read together, the two opinions mean that a cloud-based tool can create a per-client, per-matter consent obligation that a self-hosted one does not.

How to use this. Send it to any vendor you are evaluating, including us. Record the answers in writing and keep them — Opinion 24-1 frames this as diligence you perform, which means it is diligence you may later need to show.
A

Retention

Opinion 24-1 requires a lawyer to establish whether a provider retains what is submitted to it — both during the engagement and after it ends.

A1

Do you retain the documents, prompts, or outputs we submit? For how long, and in what form?

The opinion directs lawyers to determine whether the provider retains information submitted before and after the discontinuation of services. A retention answer that only covers the active subscription period is incomplete.

Rule 4-1.6 · Opinion 24-1
A2

What happens to our data when we stop using the service, and can deletion be verified?

An assurance of deletion that cannot be evidenced is not something a firm can rely on when answering its own client.

Rule 4-1.6
A3

Where is our data physically stored and processed, and under which jurisdiction?

Storage location determines which laws and which government access regimes apply to material the firm holds in confidence.

Rule 4-1.6
B

Training and self-learning

The opinion singles out self-learning systems as a specific confidentiality risk, because inputs can persist in the model itself rather than in a database a vendor can point to.

B1

Is our data used to train, fine-tune, or otherwise improve any model — yours or a third party's?

Ask separately about your own systems and about any underlying model provider. The two answers are often different, and only one of them is usually volunteered.

Opinion 24-1
B2

Is the system self-learning, in the sense that our inputs alter its future outputs?

Opinion 24-1 states that this raises the possibility that a client's information may be stored within the program and revealed in response to future inquiries by third parties.

Opinion 24-1
B3

Could information from our matters ever appear in a response generated for another customer?

This is the question the previous two are really driving at. Ask it plainly and note whether the answer is contractual or merely reassuring.

Rule 4-1.6
C

Contract terms

Opinion 24-1 adapts the standard applied to cloud-computing providers: confidentiality obligations must be enforceable, and breach notification must exist.

C1

Are your confidentiality obligations in the contract itself and enforceable — not only in a privacy policy you can revise unilaterally?

A privacy policy is a statement of current practice. A contractual term is a promise. The opinion asks for enforceable obligations.

Opinion 24-1
C2

What is your breach notification commitment, and within what timeframe?

The firm's own notification duties to clients and regulators start when it learns of a breach. A vague vendor timeline becomes the firm's delay.

Opinion 24-1
C3

What is your limitation of liability, and what is excluded from it?

The opinion directs lawyers to investigate limitations on the provider's liability. A cap set at fees paid means the firm carries essentially all of the exposure.

Opinion 24-1
D

Sub-processors

Diligence on a vendor is incomplete if that vendor passes the data to someone else. Most AI products are assembled from several providers.

D1

Which third parties process our data, and in what role?

Model providers, hosting, logging, analytics, and support tooling may each touch client material. Ask for the list, not a summary.

Rule 4-1.6
D2

If you rely on a foundation-model API, what are that provider's retention and training terms, and can you show them to us?

A vendor's zero-retention claim is only as durable as the agreement behind it. Ask whether that agreement is in place today and what happens if it changes.

Opinion 24-1
D3

Do you notify us before adding or changing a sub-processor?

Without notice, the diligence the firm performed at purchase can quietly stop describing reality.

Rule 4-1.6
E

Access control and matter isolation

Conflicts screens and ethical walls are only meaningful if the tool enforces them at the point of search, not after results are returned.

E1

Can access be restricted per matter, and is that restriction applied before search rather than filtered afterwards?

If the system retrieves everything and then hides what a user is not entitled to, the material has already been read into the model's context.

Rule 4-1.6 · Rule 4-1.10
E2

How do you support ethical walls, and how is that configuration audited?

Ask who can change a wall, whether the change is logged, and whether the firm can produce that log later.

Rule 4-1.10
F

Verification and supervision

Opinion 24-1 treats AI output like the work of a nonlawyer assistant: it must be reviewed, and the lawyer remains responsible for it.

F1

Can every statement in an output be traced to a specific source document, page, and section?

Review is only practical if verification is cheap. If checking an answer means re-reading the file, the tool has moved work rather than saved it.

Rule 4-5.3 · Opinion 24-1
F2

Are citations produced by the application from stored document metadata, or generated by the model?

A citation the model composes can be wrong in exactly the way that is hardest to notice — plausible, formatted correctly, and pointing nowhere.

Rule 4-3.3 · Rule 4-5.3
F3

What audit trail exists showing who accessed what, and for how long is it kept?

Supervision under 4-5.3 requires the firm to be able to demonstrate oversight after the fact, not only to intend it.

Rule 4-5.3
G

Client consent

This question determines whether adopting the tool creates a recurring obligation on every matter, or none at all.

G1

Does using your service involve disclosing confidential client information to a third party?

Opinion 24-1 recommends obtaining the client's informed consent where it does, and states that consent is not required where it does not. ABA Formal Opinion 512 adds that boilerplate consent in an engagement letter is not adequate — so a yes here means a real conversation with each affected client.

Rule 4-1.6 · Opinion 24-1 · ABA 512

Answers worth a follow-up question

None of these is disqualifying on its own. Each is a point where the first answer is often narrower than it sounds, and a second question is usually worth asking.

  • Confidentiality commitments that appear only in a privacy policy, not in the contract.
  • A retention answer that covers the subscription period but not what happens afterwards.
  • “We don’t train on your data” offered as a setting or a default rather than a contractual term.
  • An inability to name every sub-processor, or to produce the model provider’s own terms.
  • Access controls described as filtering results rather than restricting retrieval.
  • Citations that cannot be resolved to a page in a specific document.
  • A liability cap set at fees paid, with confidentiality breaches inside rather than outside it.

Apply it to us

LexDeploy builds private AI infrastructure that runs inside a firm’s own environment, so we have an obvious interest in the answers to section G. That is exactly why this checklist is written as questions rather than conclusions, and why we would rather you put the same seventeen to us as to anyone else. If our answers are not better on their face, we are not the right choice.

LexDeploy is not a law firm and does not provide legal advice. This document summarises published ethics opinions as a practical aid for vendor evaluation; it is not a substitute for reading them or for your own professional judgment. Read the sources: Florida Bar Ethics Opinion 24-1 and ABA Formal Opinion 512.

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Who answers them here.

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