Not sure, from what you're writing, what the benefit to the borrower was in refinancing, but there had to be something; cash out and lower rate are two that come to mind. 

The power of leverage is one of the main benefits that distinguishes RE from other investment choices, and the refi is where real wealth is made.

(I have a special needs trust for my son so have dealt with the complexities.)My bigger concern would not be your liability exposure but doing something that could potentially endanger the support benefits your brother is entitled to.

Also, in this case, it will probably be cheaper than renting and I will also enjoy all the long-term benefits of owning real estate. 

Does it benefit me at all or is it just a gov't tax money grab? 

I don't mind paying for my flights to keep all these benefits then I get my kids and husband free everything 😊.

Just sharing here so other BP members can benefit.

We’ve already benefited from the rapid appreciation and from here on out, I think it will be flat or very modest growth. 

Our goal is to create a dynamic that both parties can benefit from and be happy.

I’m benefiting from being really close to the site of the soon to be finished Obama library.