if you are basically buying 100 refrigerators you have negotiating power .  

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Now I am lost in the conversation. 

"How you doing, your family member is selling me the roof over your head and you need to leave" doesn't seem like a good conversation starter.Lastly, is there an industry standard incentive that typically works to motivate "tenants" to move out sooner than later?

I would use 50% to stay conversative. 

Then changed title to himself using Power of Attorney for the other person.   

@Meagan Maestre Leverage is the power of real estate. $100000 to invest.

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The better move is to have a reasonable conversation with them and set the expectation.

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