If not the legal skills, the persuasion skills to talk them into doing something they don't want to do.Let's just say they have a Rolls worth $100k, and you got a judgement for $10,000 against them, but they have the keys and it is in their garage.   

That's a persuasion technique called "thinking past the sale"  Get the other party to think about what things will be like after the sale and it mentally moves them to a place where the sale has already occurred thereby making it an easier decision to accept the sale. 

We actually meet the guy sitting on the front steps and see how persuasive he is.

|It is all the persuasion any tenant should require to encourage them to pay rent.

Let them know that you are there to gather information and to help them find answers and solutions.I would recommend books on persuasion and understanding human nature.

sending eviction-type letters can be persuasive enough to scare the tenant into paying the full amount, but try a friendly conversation first.

Or maybe you are just more persuasive!  

Be honest (and persuasive) with your intentions: you want to win in this deal, but you also want him to win. 

Introduction to Negotiation: A Strategic Playbook for Becoming a Principled and Persuasive Negotiator from Yale University. https://www.coursera.org/learn/negotiationI recently started taking this class and have found it very interesting so far.

(Also, not sure if my wife is on board living in an old building while we fix it up..haha that might take a lot more persuasion)