Bravil Recommendation

Two Persuasion related quests. Scrolls are given to help you if your persuasion skill is low.

Part I Find the thief Varon Vamori and persuade him to return the mage's staff he stole. When you do persuade him (~70), you find out he sold the staff to Soris Arenim in Imperial City.

Part II Find Soris Arenim in Imperial City. You can persuade him to around 70 and then he will sell the staff to you for 200gp.

notes: the staff isn't in his posession if you attempt to steal it from him. I tried bribing him up and refusing the 200gp offer and it didn't change the price.