Joshua 16-19, are chapters that continue the process of dividing the land among the Israelites. This could be seen as "blah, blah, blah" as we are reading it, but I can assure you they were not "blah, blahing" it as they were listening to who got what. This was a major deal and people were on the edge of their seats, as this would determine neighbors for generations to come. In chapter 17, we see a slight family squabble as the sons of Joseph: Ephraim and Manasseh are not happy with their allotment. They wanted MORE because they had many people. Joshua explains his reasoning forgivinig to them what he did and without giving in whatsoever challenges them to use their considerable power and people to drive out the Canaanites that were in the same area. Joshua 19:51 "so they finished dividing the land" finally the process was complete.
In Joshua 20, we see that God in His wonderful plan created a court system for the most difficult of cases. These cases would be the hardest to handle fairly in a local trial because of the loss of life; yet, we see that God cares for justice to be given out. Thhis has been interesting to me that we can see the giving out of the land to the Israelites and the immediate protection of justice by God as He sets up these cities of Refuge.