I've always done the care and maintenance of my own belongings myself EXCEPT when it was something that I was either unable or unwilling to do. Then I HIRE it done. I find a reputable company, one that is licensed, insured and with good references, get the work done and then pay the bill.
If your house has deteriorated to the point that it is unsafe to live in, it's obvious this has not been done. Small maintenance issues that are ignored don't go away, they just eventually become large issues.
If I were in your situation I would find myself a small house, condo or apartment where I could be comfortable. Choose suitable furnishings from the home or buy new and move in. Then find a reputable contractor (see above) and hire him to empty the house and re-hab it. No re-decorating, just bring it up to code so that it is salable.
I'd then get responsible help (or hire a professional appraiser) to determine a value and put up a nice large sign in the yard "For Sale by Owner, AS IS" or hire a small, independent realtor to deal with the selling under the same conditions. Unless the house is in an extremely undesirable neighborhood, there will be a quick sale.
With your income, you no doubt have savings but if not, talk to your banker about a mortgage using the house as collateral and to be re-paid upon sale.
