There are quite a few limitations and there are good reasons for them, most of which are for the purposes of maintaining ethical compliance.
For starters, the hiring attorney must have sole professional responsibility for the work product of the freelance lawyer and must supervise the performance of services for each project to ensure compliance with the
Rules of Professional Conduct.
In addition to that, the freelance lawyer will have no contact with the hiring attorneys' client, opposing counsel, witnesses or any other persons potentially involved with the project, either by way of telephone, email,
facsimile, social media, in-person, and/or zoom and other like platforms.
Finally the hiring attorney must retain sole responsibility for determining the fee charged to his or her client. The freelance lawyer must not have any influence or involvement in that process.