As corporations' business concerns evolve and they demand their legal counsel become more efficient and industry-savvy, the Big Four accounting firms are recruiting more lawyers that dually possess legal and business acumen. Beyond that, prior legal tech experience or training isn't a prerequisite. But law schools noted that recent graduates should have a willingness to leverage those tools to understand and foster corporate strategies.

To be sure, having a master's degree in business administration and a law degree was once a clear indicator that a candidate possessed the skills needed to work in an international accounting firm, said Deloitte Greater Washington managing partner Tamika Tremaglio, who graduated with an MBA and law degree in 1995.

"Having an undergraduate business degree or a dual degree was incredibly helpful, but that was 25 years ago," Tremaglio noted. "Now it really depends on what department or group you are in, because we are so large and have so many departments."