Open Road Media is having a sale on 10 legal thrillers. The link to the master page is:
http://www.openroadmedia.com/legalthrillers
Open Road's website is not very intuitive, at least for me. Once you are there, you click on the book cover, which pulls up a blurb about the book; and then at the bottom of the blurb, there is a button which says "Buy the ebook". You click on that, and it then offers links to the various sellers.
The six books which have "Sale" splashes on them are $1.99 at Amazon, and the others are in the $7 - $8 range - still a few bucks off, but not much of a sale. I didn't have time to check prices at all of the sellers.
I quite like Tapply's Brady Coyne series, which I'd call more of a legal mystery series than a legal thriller series, but opinions may vary.
Death at Charity's Point is the first in that series, and is one of the $1.99 ones.