Canines are used before a line search, as the multiple scents the line search generates would interfere with the canine tracking.
Much was made about getting Lorraine's phone number, but she had been texting a nurse at the hospice, so the agents would have obtained that from the hospice without all of the extra effort.
The offender data shown for Julianna Hargrove lists her as being a black female with black hair. The photo on the record page shows she is a white female with blonde hair. Additionally, the "Known Aliases" for her are actually nicknames- Julie and Jewels. An alias is another complete name such as Jane Doe.
Agent Willis mentions the hospice where the grandmother "was" being held before he learned the mother had passed away. Hospice facilities are used for end of life, they do not release people to return to their homes.
Agent Willis leaves the red and blue lights flashing while parked on stakeout with the family. Unmarked police vehicles do not use the flashing lights while on stakeout.