Professional Corporation in Arizona: member expelled from LLC

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Illustrative scenario prepared by my practice.
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Hypothetical question

On mobile so apologies for formatting. Ok so i'm dealing with a situation in Arizona and need some guidance.

member expelled from LLC. I've been dealing with this for about 10 months now and the situation isn't improving.

I have already tried to resolve this directly but did not get a clear answer honestly.

Should I hire a lawyer for this or try to handle it myself?