Letter · In-House / General Counsel

Instruction letter and terms of engagement for external lawyers (in-house client, including AI use and billing rules)

A letter from an in-house legal team instructing an external law firm on one matter: scope, who gives instructions, team, estimate and cap, billing rules, privilege handling, data security, the firm’s use of AI and reporting.

Kind
Letter. A letter or email you adapt and send.
Where it applies
Australia, New South Wales, Victoria, Western Australia
AI use
Yellow AI can help in set ways. A lawyer checks specific points before use.
Law stated as at
18 October 2026
Status
Maintained. Checked on 18 October 2026 against the 2 authorities it cites, for 4 jurisdictions.
Version
1
Source
Written for this library

When to use it

Use for each new matter sent to a panel or other external firm, alongside any panel deed. It sets the organisation’s own terms; it does not replace the firm’s costs disclosure where the organisation is not a commercial or government client under the Legal Profession Uniform Law.

How AI may be used

AI may assemble the letter from the matter request and panel terms and later check invoices against it, but the in-house lawyer settles the scope, estimate and instructions and sends the letter.

AI may

  • Fill the matter details, team, rates and estimate into the approved letter from the request form and the panel rate card
  • Check each invoice against the scope, rates, cap and billing rules in the letter and list the lines to query
  • Track spend against the estimate and remind the matter owner when the notification threshold is reached

AI must not

  • Must not decide the scope of instructions, the estimate or whether to approve work beyond the cap
  • Must not put privileged or confidential matter material into a tool that retains or trains on inputs
  • Must not reject or approve an invoice; it lists queries for the matter owner to decide

The lawyer checks

  • Scope and out-of-scope items are specific enough to measure invoices against
  • Whether the organisation is a commercial or government client under s 170 of the Uniform Law, and so whether the firm must still give costs disclosure, has been considered
  • The AI-use terms match the organisation’s AI policy and any court practice note that will apply if the matter is litigated
  • Named people authorised to instruct the firm are current, and privileged communications go only to legal

Method: how the Green, Yellow and Red levels are decided. This is guidance for planning, not legal advice.

Authorities

Read the full text

More in In-House / General Counsel

All precedents for In-House / General Counsel · Tasks and AI use in this area