Even the best of the best friends in the family is likely to find it had to handle matters, especially where inheritance is involved. Different cases of siblings who were once best friends and no longer talk to each other have been reported across the world because of house inheritance. Following the difference in opinions and intentions of the siblings especially if the number is more than two, the whole issue is likely to end in fights always.
It is therefore important to set a neutral agreement that will control the inheritance process and how the benefits raised from it shall be shared. Some such case has ended up in the courts making it impossible to settle such matters as a family.
When the ownership is based on a 50-50 basis, then the best option is to sell the house and have the money divided so that each sibling can handle their part. Renting out the house to a neutral tenant then share out the rent income can also be a solution to avoid constant disagreement.