In NC in 2001, my mom signed a Life Estate document, naming my brother and I on the document. She was placed in a nursing home 2 years ago with the house sitting empty for those 2 years. She passed away in January 2018. My brother and I just sold the house, splitting proceeds 50/50. I am now trying to find out what my Federal and NC state tax liabilities will be. Thanks.
You've not provided enough details to work with here. A life estate can be set up hundreds, if not thousands of ways. Basically, whose name was on the deed to the house, before the house was sold? Did your mom leave a will? If so, did that will name you as the beneficiary of her estate? Or maybe she gifted you the house with the life estate? What's the details here.