Even if they don't realize how much money you're costing them now, someone will tell them eventually and I don't think your canned wholesaling response is going to do much to repair the damage. 

When you have multiple responsible adults sharing a house, if one "bad egg" slips in then you have the others renters to kick them out or report them. 

Your son is responsible for making payments on time or ruining this seller's credit. 

Thanks for all the responses. 

If this info helps with any advice given in anyone’s responses, they are good tenants.

I really appreciate the detailed responses!

Quote from @Dawn Roy: My response is not relevant to this transaction as it appears everything is going to work out with your lender. 

Hey I need you to move out since you're not being responsive or working with me.

Thanks for your response Dylan.

What I'm gathering from these responses is not necessarily an encouragement to sell and that instead to take precautions to decrease the fire risk and ensure that insurance is covering things like wind.