AI Adoption in Mid-Size Law Firms Surges Fivefold, Integration Still Lags – Clio Report
In a remarkable shift, mid-size law firms have seen a dramatic surge in AI adoption, jumping from 19% to 93% in just one year, according to Clio’s latest report on Legal Trends for Mid-Sized Law Firms. This fivefold increase underscores a significant transformation in how these firms embrace technology.
Over half of these mid-sized firms now report using AI either widely or universally across their operations, indicating a rapid and widespread acceptance. The adoption rate was consistent across all subgroups within the mid-sized category, with no specific size driving the increase.
Joshua Lenon, the lawyer in residence at Clio, attributes this rapid adoption to the structural advantages of mid-sized firms. Unlike smaller firms that rely on fewer employees, mid-sized firms have enough staff to support non-billable roles like bookkeepers and client intake specialists, which already streamline processes.
Despite the legal profession’s reputation for being resistant to change, lawyers are warming up to AI faster than expected. A previous survey by Clio found that only 8% of lawyers considered AI difficult to use, a surprisingly low number for an industry often perceived as technophobic.
The report also highlighted changes in billing practices among mid-sized firms. Nearly all (99%) of these firms use multiple billing rates for their lawyers, compared to 85% of smaller firms. On average, mid-sized firms apply eight different hourly rates for lawyers and other legal professionals, while small firms use three.
Interestingly, the distribution of billing rates in mid-sized firms shows a steadily rising slope with no clear peak, unlike the bell-curve distribution seen in smaller firms. Over 30% of mid-sized law firms’ hourly rates fall in the 75th percentile and above, starting around $750 and continuing upward.
As more tasks become automatable, firms are beginning to reconsider their charging models. The report analyzed about seven million time entries and found that while no task is fully automatable, none are immune to automation either. This opens the possibility for hybrid billing, where firms could charge flat fees for highly automatable tasks while maintaining hourly rates for work requiring human oversight.
Mid-sized firms appear more open to this shift, being more likely to offer flat fees than smaller firms. However, there’s a disconnect between what firms say and what they do. While they express willingness to change, they remain heavily invested in hourly billing.
Despite their enthusiasm for AI and commitment to modern tools, mid-sized firms are missing a critical piece: a centralized practice management system. Only 38% of mid-sized firms are utilizing legal practice management software, significantly trailing behind the 71% adoption rate seen among smaller firms.
Lenon points out that while mid-sized firms are investing in various legal tech solutions like document storage, AI tools, and accounting systems, they often fail to integrate these into a cohesive platform. Without a central hub, such as a cloud-based practice management solution, data remains fragmented and underutilized. This limitation hinders AI’s ability to automate tasks across systems effectively.
AI Adoption in Mid-Size Law Firms Surges Fivefold, Integration Still Lags – Clio Report
In a remarkable shift, mid-size law firms have seen a dramatic surge in AI adoption, jumping from 19% to 93% in just one year, according to Clio’s latest report on Legal Trends for Mid-Sized Law Firms. This fivefold increase underscores a significant transformation in how these firms embrace technology.
Over half of these mid-sized firms now report using AI either widely or universally across their operations, indicating a rapid and widespread acceptance. The adoption rate was consistent across all subgroups within the mid-sized category, with no specific size driving the increase.
Joshua Lenon, the lawyer in residence at Clio, attributes this rapid adoption to the structural advantages of mid-sized firms. Unlike smaller firms that rely on fewer employees, mid-sized firms have enough staff to support non-billable roles like bookkeepers and client intake specialists, which already streamline processes.
Despite the legal profession’s reputation for being resistant to change, lawyers are warming up to AI faster than expected. A previous survey by Clio found that only 8% of lawyers considered AI difficult to use, a surprisingly low number for an industry often perceived as technophobic.
The report also highlighted changes in billing practices among mid-sized firms. Nearly all (99%) of these firms use multiple billing rates for their lawyers, compared to 85% of smaller firms. On average, mid-sized firms apply eight different hourly rates for lawyers and other legal professionals, while small firms use three.
Interestingly, the distribution of billing rates in mid-sized firms shows a steadily rising slope with no clear peak, unlike the bell-curve distribution seen in smaller firms. Over 30% of mid-sized law firms’ hourly rates fall in the 75th percentile and above, starting around $750 and continuing upward.
As more tasks become automatable, firms are beginning to reconsider their charging models. The report analyzed about seven million time entries and found that while no task is fully automatable, none are immune to automation either. This opens the possibility for hybrid billing, where firms could charge flat fees for highly automatable tasks while maintaining hourly rates for work requiring human oversight.
Mid-sized firms appear more open to this shift, being more likely to offer flat fees than smaller firms. However, there’s a disconnect between what firms say and what they do. While they express willingness to change, they remain heavily invested in hourly billing.
Despite their enthusiasm for AI and commitment to modern tools, mid-sized firms are missing a critical piece: a centralized practice management system. Only 38% of mid-sized firms are utilizing legal practice management software, significantly trailing behind the 71% adoption rate seen among smaller firms.
Lenon points out that while mid-sized firms are investing in various legal tech solutions like document storage, AI tools, and accounting systems, they often fail to integrate these into a cohesive platform. Without a central hub, such as a cloud-based practice management solution, data remains fragmented and underutilized. This limitation hinders AI’s ability to automate tasks across systems effectively.

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