I liked the Richard K Morgan 'grimdark' series, starting with The Steel Remains. It has a similar style to Abercrombie and Martin in that each chapter follows a specific character POV, and I would say it has similar grimdark themes to First Law or ASOIAF.
I think the blurb they use for the book is terrible, but here's a link to it on amazon: https://www.amazon.com/Steel-Remains-Land-Fit-Heroes/dp/0345493044/ref=tmm_pap_swatch_0?_encoding=UTF8&qid=&sr=
if the first book being written in 2010 doesn't disqualify it, The Steel Remains by Richard Morgan and it's 2012 follow up The Cold Commands are not only exactly what you are looking for, but exceptionally well written. + digging up those links made me realize there's a new one out from 2014, now that i know, that'll probably be the next book i read.
They could use The Steel Remains as source material.