Yes. Maybe. We don't know!
Microsoft shot itself in the foot. Windows 8 was a disaster meant for touch screens, and not coincidentally, since its release, the PC market has tanked. Yeah, mobile devices, tablets, yadda yadda, but look at operating system market share in terms of percentages: Windows 8 is lagging behind freaking Windows XP. That's bad.
Law firms need computers. And since they aren't buying Windows 8 PCs, are they going Mac?