I'm Lucy, and I'd be happy to answer your questions today. I'm sorry to hear that this happened.
Unless he has 51% of the voting interests, no, he can't do that. If the papers say nothing, then you have equal interests in the company, and a majority vote is required to vote anyone out. You must have a quorum present at a meeting before action taken is valid - so with 4 managers, you need at least 3 people there (unless the papers say otherwise). And even if he DID have the power to vote you out, he'd have to purchase your interest. You and the other managers can sue for the fair value of your interest. Or, if the investments you made are more than what the interests are currently worth, a judge could order him to refund your money since he violated the partnership agreement that you had.
Judges usually won't order people to keep working together when there's a problem, but one person doesn't get to decide who gets to keep the business. Either it gets dissolved, and all assets divided after debts are paid, or the person staying has to buy the rest out.
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