Aderant and the art of getting paid

The first thing that went wrong was the description of the work. At Hawkins Parnell Thackston & Young, lawyers wrote time entries that did not match client billing guidelines. Bills came back. Payment waited. The legal work had been done; the administrative work was multiplying.

Ten people, then a waiting list

Accounting and billing director Tim Arvidson tried iTimekeep with ten lawyers over two months. He chose people with different ages and technical abilities, including colleagues likely to influence others. According to Aderant’s case study, all ten participated actively; 64% of entries arrived within a day of the work.

Arvidson then offered access in groups of twenty. The first group filled in five minutes. A waiting list followed. A small experiment had made a tedious task attractive enough to request. This was a vendor-published pilot, rather than a controlled study, but its adoption mechanics are worth borrowing.

“Within five minutes, I already had my 20 people.”

Tim Arvidson · customer case study

Start with a mixed group, measure a problem people recognize, and let colleagues describe the improvement. That is a more useful implementation plan than assuming a software purchase will change everyone’s habits.

The invoice has rules of its own

Aderant makes business software for law firms. Its specialty is the machinery surrounding legal work: recording time, checking client requirements, preparing bills, tracking collections and maintaining financial records. These tasks are interconnected, although the people performing them may sit in different departments.

Consider the journey of one billable hour. iTimekeep records the work. Onyx turns outside counsel guidelines into rules that can be applied across timekeeping and billing. BillBlast handles invoice delivery and tracks what happens afterward. Expert Sierra supplies the broader practice and financial management system, including accounting, matters, rates and collections.

BillBlast also reconciles matter information between firm records and client billing portals. That detail sounds small until someone has to copy the same information between systems. Aderant’s expertise lies in recognizing how many such details a law firm accumulates.

The portfolio extends beyond the invoice. CompuLaw and the cloud-based Milana handle rules-based docketing and calendars. The vi suite covers recruiting, evaluations and work allocation. A firm can therefore buy specialist tools around its existing operations as well as consider a broader financial system.

A business built around the back office

Aderant’s current homepage reports more than 2,500 unique clients in 26 countries. It says 98% of the Am Law 200 use its solutions. That describes reach across the portfolio; it does not mean almost every large American firm runs Expert Sierra.

The distinction matters in a market where one firm may assemble several vendors. Elite’s 3E competes directly in enterprise financial management, with its own accounting, billing and reporting platform. Aderant’s pitch rests on the breadth of its legal operations tools and their connections. Buyers still have to examine the particular integrations and modules they need.

Roper Technologies agreed to acquire Aderant in October 2015 in a transaction valued at $675 million, net of $20 million in cash tax benefits. The number describes a change of ownership. It should not be mistaken for venture funding available to spend on product development.

Acquisitions have widened the offering. Bellefield brought iTimekeep and OCG Live into Aderant in 2019. Virtual Pricing Director joined in October 2025, adding pricing and profitability modeling while remaining available independently of a firm’s practice management system. The commercial logic runs from deciding what to charge to collecting it.

The server room enters the argument

The business model includes cloud subscriptions alongside an established software portfolio and implementation services. Expert Sierra moves financial operations into a hosted environment. In July 2025, Miles & Stockbridge selected Sierra and Stridyn Analytics to connect financial, operational and practice data. The announcement described intended improvements, rather than measured results.

What does it cost? Aderant’s August 2026 cost discussion addresses an objection that Sierra can appear two to three times as expensive as an existing Expert license. Its argument is that a license-only comparison leaves out servers, hosting, security, maintenance and internal IT time.

That is a sensible accounting question, not a universal savings result. The firm must compare its own three-year costs, including migration and training. Recently purchased infrastructure, difficult integrations or limited internal capacity could change the decision. A subscription does not make the organizational work disappear.

AI gets an administrative job

Stridyn is Aderant’s shared cloud platform; MADDI supplies AI capabilities. In May 2026, Aderant reported more than 275 firms had adopted Expert Sierra. Its newer proposition is to use connected operational data for analytics and assistance across the business.

The Harvey integration, generally available in August 2026, makes the idea concrete. Work performed in Harvey can become a draft iTimekeep entry with matter context, duration and a generated narrative. A lawyer reviews, edits and submits it through the firm’s approval process.

Agent Center opened early access that month with a portfolio covering appeals, collections, talent, time, compliance, forecasting and rates. Users remain final decision makers. Early access describes a product stage; it does not establish that every customer has already achieved the promised operational gains.

The test is refreshingly ordinary. Does the entry need fewer corrections? Does the bill reach the right place? Does somebody collect the money sooner? For a buyer, a useful demonstration would follow one real matter from its client instructions through time entry and invoice delivery, then show exactly which staff member handles an exception. Aderant’s business becomes easier to understand when those questions lead. The cleverest feature still has to survive the next invoice.