I am very sorry to hear about everything happening at once, it is overwhelming. I think you got some great advice above, please do take care of yourself first and foremost - you won't be good to anyone else if you don't.
You said your step-dad had been receiving med's from the VA - I assume he's a veteran? There are a few organizations that specifically build and renovate homes for veterans. Homes for Heroes, Homes for our Troops, Soldier's Angels, even Home Depot has a foundation. I agree - get the local media involved, and you will probably get all the help you need with the home. Don't be afraid to ask your friends for help with some of the day-to-day things - if I had a friend going through all this I might not know what you need done, but would want to help in any way I could. My thoughts and prayers are with you and your family.
You said your step-dad had been receiving med's from the VA - I assume he's a veteran? There are a few organizations that specifically build and renovate homes for veterans. Homes for Heroes, Homes for our Troops, Soldier's Angels, even Home Depot has a foundation. I agree - get the local media involved, and you will probably get all the help you need with the home. Don't be afraid to ask your friends for help with some of the day-to-day things - if I had a friend going through all this I might not know what you need done, but would want to help in any way I could. My thoughts and prayers are with you and your family.