What the 2009 amendment to Model Rule 1.10 changed
Before 2009, most states barred lawyers from moving between firms if their new matters created a direct conflict with a former client of the old firm. Even an airtight screen could not cure the problem. The American Bar Association's amendment to Model Rule 1.10 in 2009 changed this. The amendment allowed firms to screen lateral hires from participation in matters that would otherwise create an imputed conflict, as long as certain conditions were met. The firm no longer needed consent from every affected former client in every instance.
This shift came from practical pressures. Mobility in the legal profession had increased. Larger firms argued that absolute bans on screening made it too difficult to hire experienced attorneys, especially those who handled complex cases or specialized work. The ABA's change set out a process: screen the lawyer from any communication or fee related to the matter, notify affected clients, and keep a record of the screening steps taken. The goal was to balance client confidentiality with the realities of modern practice.
Rules about screening had existed for government lawyers under Rule 1.11, but Rule 1.10 brought the concept to private practice. The amendment did not force states to adopt the new approach, but it provided a new template. Since then, states have diverged in how they implement or reject screening for lateral moves.
Keep reading: What State Bar Ethics Hotlines Get Asked About Conflicts
The three broad state positions on screening without consent
After 2009, states sorted themselves into three broad camps. Some adopted the ABA Model Rule almost verbatim. In these jurisdictions, screening a lateral hire is enough to avoid imputed disqualification, as long as technical requirements are met. Many of these states are clustered in the Midwest and South, but there are exceptions.
Other states allow screening, but only with additional hurdles. Some require former client consent on top of a screen. A few states limit screening to certain types of matters, such as those not involving direct adversity or only in civil cases. The rules can be stricter for firms with fewer lawyers, making compliance more challenging for solo and small practices.
The third group rejects the ABA screening approach outright. Some states stick with the older rule: once a conflict is imputed, the whole firm is disqualified, regardless of screening. This means that a single lateral hire with a short-term connection to a matter can block the entire firm from representing a new client, even if the lawyer is walled off completely. In these states, the only cure is getting informed consent from every affected prior client, which may not be practical.
States move between these groups over time. A handful have changed course more than once. Every firm must check their own state's current version of Rule 1.10 before relying on screening to cure a lateral hire conflict.
Notice requirements, certifications, and timing triggers
The Model Rule sets out three main steps: timely screening, written notice to affected clients, and a statement of compliance. States that follow the Model Rule closely usually require prompt written notice to each affected former client. The notice must include a description of the screening procedures, a statement that the lawyer will not share in fees, and a promise to respond to inquiries. Some states add a certification from the screened lawyer and from the managing partner, attesting to compliance both at the start and periodically afterward.
Timing is critical. Most rules require that screening be implemented as soon as the potential conflict is identified, often before the new lawyer is formally hired or assigned to any matter. Delay can invalidate the screen. Written notification must go out immediately, not weeks later. In some states, failure to follow the timing requirements strictly can make the whole screen ineffective, leading to disqualification anyway.
The level of detail required in the notice varies. Some states want only the basics: that a screen has been set up and that the lawyer is excluded from participation. Others require more: a description of the physical or electronic barriers in place, an explanation of how files and communications are walled off, and a phone number for questions. For solos and small firms, these requirements can be burdensome, especially if compliance demands a formal record for each screen.
Keep reading: How to Build a Conflicts Database From Ten Years of Closed Files
Why the rule reaches contract lawyers and part time associates
Rule 1.10 applies to any lawyer "associated with" a firm, regardless of employment status. Contract lawyers, part time associates, and even short-term project attorneys can trigger the same conflict rules as full-time partners. The key question is whether the lawyer, by joining the firm in any capacity, brings information from a prior client that is material to a new or ongoing matter at the firm.
This can catch small firms off guard. A solo who brings in a contract lawyer for one case may not realize that the person's client list travels with them. If a conflict is found, the entire firm, however small it may be, has to abide by the same screening, notice, and recordkeeping obligations. Even a lawyer working remotely or only briefly can require the firm to create a contemporaneous screening record to avoid imputed disqualification.
Some states provide a safe harbor for "temporary" or "non-permanent" lawyers, but this is not universal. The safest approach is to treat all new hires as potentially triggering Rule 1.10, regardless of how long they plan to stay. Firms should ask about prior matters and clients up front and document their conflict checks and screening actions consistently.
Government lawyers under Rule 1.11 and why they were always separate
Screening for former government lawyers has a longer history. Rule 1.11, adopted in most states in the 1980s and 1990s, allowed firms to screen former prosecutors, agency counsel, or other government lawyers who moved to private practice. This was a recognition that government lawyers often handle many matters, some of which would make private practice impossible under a strict imputation rule.
The requirements for screening under Rule 1.11 are usually similar but not identical to those under Rule 1.10. Notifications to the affected government agency are required, and the screened lawyer cannot participate in any way in the matter. Some states are stricter with government-to-private moves, barring representation in the same matter regardless of screening or prohibiting certain types of work for a cooling-off period.
Rule 1.11 covers both criminal and civil government work. The underlying policy is different from Rule 1.10: the emphasis is on protecting government confidences while still allowing the government and private practice to attract experienced lawyers. For firms hiring former government lawyers, the key is to track which rules apply, Rule 1.10 for private practice laterals, Rule 1.11 for government-to-private moves, and to create screening procedures that address both sets of requirements.
See how ConflictCheck handles this for legal services
What a screen has to look like in a two person office
In a small firm, physical and practical barriers are harder to set up. The Model Rule requires that a screened lawyer have no access to the conflicting matter's files, discussions, emails, or billing. In a two person office, that means strict separation of workstations and files. Access to electronic case files should be password protected or stored in a way that only the non-conflicted lawyer can reach them.
Communication is often the hardest part. The lawyers must avoid discussing the matter, even informally. Any staff, such as a legal assistant or bookkeeper, must be trained to direct questions or documents only to the lawyer handling the matter. For many small firms, the lack of physical separation makes it tempting to skip formal screens, but this is risky. If challenged, only a documented, practical screen will satisfy the rule.
Written records are essential. The firm should keep a dated memo describing the screen, the steps taken, and who is responsible for compliance. This can be as simple as a signed statement filed in a secure folder, updated if circumstances change. In many states, failure to keep this record can defeat the screen, leading to disqualification or even disciplinary action.
Electronic tools can help even the smallest firms. Secure document portals, case management systems with role-based access, and structured intake forms can automate some of the separation needed. The most important step is to act immediately: as soon as a conflict is detected, the screen must go up and the compliance measures documented.
Where the next round of state amendments is pointed
Several states are now reevaluating their rules in light of increased lawyer mobility, remote work, and public pressure for transparency. Committees in a handful of states are reviewing whether to loosen current bans on screening, especially for small firms. Others are looking at making notification and certification procedures clearer, so that even small practices can comply without legal guesswork.
Some proposals call for more detailed definitions of what a "screen" must include, aiming to address situations that arise with remote lawyers and virtual offices. There is also interest in harmonizing Rule 1.10 and Rule 1.11 procedures, so that firms do not have to run two sets of compliance paperwork for different types of hires. A few states want to require specific forms or templates for screening notices and certifications, to reduce disputes later.
Technology is a recurring theme. Regulators recognize that even small firms are moving to digital case management and remote intake. They want rules that clarify how electronic records, passwords, and software-based screens can satisfy the intent of Rule 1.10. No state has finalized a uniform approach, but draft amendments suggest that systems able to securely document intake, identify adverse parties, and track the date and nature of each screening action will be favored.
For solo and two lawyer firms, these changes will mean more emphasis on up-front conflict checks and clear, dated screening records. Tools that combine structured intake with automatic adverse party searches and contemporaneous screening documentation will be well positioned to meet the new rules as they arrive.
