Continuity mistake: Upon breaking in to the funeral home, Ruth and her father spray paint over the cameras. However they miss one when the open up the casket room, right above the right corner of the door. After searching the caskets, the camera mysteriously vanishes. (00:51:52 - 00:53:00)
Plot hole: Ruth enters Darlene's home at night, crossing over the crime scene tape. She proceeds to the barn where she finds all of Darlene's heroin packed up neatly. This is factually impossible. Once the police had secured the crime scene in the house, they would have searched the entire property and would have discovered and seized the heroin at that time. (00:54:38 - 00:56:09)
Continuity mistake: Roy and Scotty pull up in their truck just as Roy's mom Barb is carrying a coffee table down concrete stairs from a house (not sure if it's Barb's house). After Roy and Scotty load it in their truck and ready to drive off, Barb asks them to "hang on" for a minute. Barb appears to jog a few paces on the sidewalk before running up the concrete stairs. When she reaches step five or six, she collapses. The next scene shows Roy racing to help Barb, but now she's on the sidewalk just starting step one. (00:20:10)
Other mistake: If the cartel's money to be cleaned is from selling drugs then why is it all brand spanking new? In season one he gets it delivered in a van in boxes. When they open them the money is new bills, still in bank wrappers. Why would people buying drugs go to the trouble to going to the bank to get new bills?
Factual error: Ruth applies to have her criminal record expunged. She meets with the judge privately to discuss the matter. This is an ex parte meeting and would not be allowed. The state's attorney needs to be present for this meeting. The judge also says she will check up on Ruth to make sure she is living right, again without any input from the state. It should be the state's attorney checking up on Ruth, not the judge.
Factual error: The judge rules in favor of Wendy's father despite not hearing any testimony from his primary witness, who fails to appear. The judge states on the record that he is making this ruling because of the Byrdes' "reputation" rather than any testimony. This is absolutely ludicrous. A judge is not allowed to make a ruling on a child custody case based entirely on his opinion of the litigants, which he doesn't even elaborate upon, rather than any evidence or testimony before him.