Ok, so since I don't know who to talk to and the whole thing is pretty hush hush around here for now, I just needed a place to let some of this stuff out...
My sister and BIL have been together for 10 years, married for almost 6. My mother decided to retire a while ago and put her business up for sale. My sister had basically just gotten out of a fairly severe depression and her health was finally back on the right track and she in no way wanted to go back to her old job but would have to find work somewhere when all of a sudden my BIL lost his job as a salesman for the company he was working for. They lost their health insurance (at least we have free medicare here, but it doesn't cover extra costs for many things like Rx and such) and the trcuck the company was paying for, etc.
They then made a decision to buy my mother's business so they could work together and from home, making it easier to be together (since BIL was on the road a lot at his old job) and easier on my sister's health since she absolutely did not want to go back to her old job (which was a huge part of her being depressed in the first place). So a few months ago, they officially became the new owners of my mom's former company. This all seemed like a great idea! My DH has been working for my mom for 7 years now and both my sister and I have worked there to help out through summer break when we were in University, so this is sort of the family business in a sense, so everyone was thrilled they would be taking over, and not just a complete stranger.
So when all the changes happened a few months ago all was going well. Then all of a sudden my DH started telling me how odd BIL was acting (since they now worked together) and how obsessed he was about certain things related to the business. We had also noticed him losing quite a bit of weight and just basically not looking or acting like his old self but we just chalked it up to the stress of losing his old job then starting out with their new business. This kept getting more and more noticeable...so I will now fast forward to yesterday.
My sister called me crying that her DH wasn't making any sense anymore and hadn't slept at all the night before which in turn, kept her up. She said she didn't know what to do anymore as he was saying all sorts of stuff that didn't make much sense. She asked me if I could go in to work in his place so she could send him home to rest, so of course I did. She then talked to him on the phone and noticed it getting even worst, so she asked my mom to take him to the hopital. So he went. His blood pressure was dangerously high so they decided to admit him and do more tests. It turns out they admitted him to the psychiatric department and he can't check himself out. He is basically having a full blown mental breakdown of some sort...they need to run more tests.
So my poor sister is all by herself, trying to run the newly acquired business AND taking care of her husband who doesn't want everyone to know what is going on. Only very close family members know anything at this point. She has even mentioned that she found out lately that his strange behavior has cost them a lot of money that she is just now learning about and she has no idea how she is going to keep the business running with all the debt he has brought upon them (she didn't tell me how much that is, but my sister has always been a worrier, especially with money since she has a degree in finance). I think she is blaming herself for a lot of things right now. I just feel sooooo horrible for them right now, I don't even know what to do. I just can't believe this is happening to them...I'm so scared for both of them. My sister's mental and physical health is already fragile and I'm not sure she will be able to handle all of this without relapsing into her own depression. I just have no idea what will happen and I feel so helpless, like I should find a way to help them out, but I don't know how...
Thanks for listening...sorry if I bored you all with the details.

I guess I just needed to get some of that off my chest.