How can one deal with a father's desire for a business partnership among his children, while there are fears of disputes arising that could lead to the severance of kinship ties, and at the same time avoid filial disobedience?

The great right of parents, the obligation to honor them, treat them kindly, and obey them in what is good, is not hidden. We advise you to be keen on honoring your father and doing what pleases him, as long as it does not result in harm or unbearable hardship for you. If you strongly believe that something of that sort will result, then your disagreement with him is not considered an act of disobedience. You should strive to convince him using a good approach.