Help pay off debt my brother left behind

Hello, everyone.

Here I am, turning to crowdfunding. Please hear me out.

My brother died on October 13, 2015, at 31 years old. Behind he left his wife and child, and also me and our parents, grieving and hurting. He also left a huge debt, which happened thanks to his giving and loving nature, where he helped anyone he could, as well as his misfortune, which caused him health problems and accidents, some of which kept him from being able to work for days, weeks and months at a time.

Now both our families are drowning in debt, wondering if we will be able to afford eating while paying off all he couldn't pay, and also our house, taxes, bills, and medical expenses. We are lost and have no idea what to do.
I work at a minimum wage job for 8 hours a day, working shifts. I don't get paid enough money to help buy groceries while also paying travel expenses and other expenses. Even if I take on another job, which I will (as an English teacher and a nail technician), and take on more hours, I will still never make enough to support us. My mother works as the cleaning lady in a health clinic in my town. My father was laid off earlier this year, due to age and health problems, and is now being paid a small amount of money by the government, but that won't last for much longer, and when, and if, he finds a job - his pay will be as small as mine, and he won't have many working hours due to age and health.

As for my sister in law, she will now have other debts to pay, take care of the child, work for 12 hours a day as she's been doing for so long, and still wonder how to feed herself and her daughter.

Those kinds of worries are what killed him, by the way, as well as the last accident he was in, which was the last straw - a bone that didn't heal well broke off and traveled to his lungs.

My brother, when alive, bought himself his very first normal car. One that doesn't have any problems, that wasn't owned countless times by other people, one that won't betray him as easily. He only drove it for a few weeks. He only had a car because he had to - work making him go to another city to fetch his working truck, his child needing to be taken on appointments (and buses from where he lived are always so packed, you couldn't fit a stroller in), and take his wife to work and back.
Knowing how proud of his car he was, how excited he was, how much he loved it, I cannot bare the thought of someone else using it, which is why I am selling off my own car, and will try to pay his off in any way I can. I need the money for it ASAP, or my sister in law will sell it.

If I could, I'd be avoiding asking for help, but I have no other choice, unless I want to see my family die off slowly.
I know I am asking for a lot of money, but that is how bad it got, and there is no other way to get ourselves out of this situation.

If you can't donate, please share this page with the world. If you can donate, even the smallest amount will be appreciated. Anything that comes over the amount we need to pay off will go towards giving my niece the education she deserves, which he never got to do himself.

Thank you for your time.