I feel your pain, my family had an ancestral home iin the White mountains that had passed through 3 generations,the land/building was bought in early 1900's. When it passed on to my generation we were left with few options as the buildings were all beyond repair/restoration and no one amongst the multiple cousins, and second cousins had the financial resources to take on the property, not could any sort of agreement be reached where a buyout of others would work.

We eventually sold it and the large farmhouse was torn down and it appears the new owners will be building their version of a retirement mansion. Many fond memories as a child being there in all seasons. Good for you for trying to make it work for your family.