How these disputes usually start
The trigger is often ordinary: distributions stop while one owner keeps drawing a salary, a minority owner is taken off the bank accounts and out of the meetings, one side wants to sell and the other does not, or requests for financial records go unanswered. In companies with two equal owners, the problem is sometimes that nothing can be decided at all. By the time someone calls, the business itself is usually feeling it, as vendors notice, employees take sides, and decisions get deferred. Acting while the company is still functioning leaves you more options than waiting does.
What the documents say first
Before anything else we read the operating agreement, shareholders agreement, or bylaws, because these often already answer the questions being argued about: how someone exits, how a price is set, who can call a meeting, and what records an owner is entitled to see. Gather the formation documents, any buy-sell arrangement, the minutes and consents that exist, recent financial statements, and the communications where the disagreement plays out. Note also what the owners actually did over the years, since long practice sometimes differs from the written document. Which state's law governs the entity usually follows from where it was formed.
The paths available
Some of these matters end in a negotiated buyout, where the disagreement is about price and terms rather than principle. Others need a court because one side will not share information or will not come to the table. Mediation is common, and confidentiality often matters to both sides more than it first appears. We will talk through what each path asks of you in time, cost, and disruption to the business. Whether you want to leave, to stay, or to be bought out is the answer that drives everything else, so it is worth deciding early.