Click here for more info on the East Empire Blessings and how convincing the Jarls works.
The following options are available for both Skald the Elder and Brina Merilis:
In addition, Skald has a Coerce option (see below), and Brina has a Favor option (see below).
If Skald is the Jarl, a note can be found in a room on the second floor of the Mortar and Pestle called "Concerned Note" which will unlock the Coerce option.

If Brina is the Jarl, a note can be found on a table in the Jarl's bedroom called "Note to Jarl Brina Merilis" which will tell the player of bandits troubling the area.

The bandit camp can be found near Windward Ruins. Killing the bandits here will unlock the Favor option.
