Transfer of ownership from partnership to sole proprietorship

Hi, last February me and my then partner created a multi-member LLC for our content production and social media management business that has the tax structure of a partnership. We had minimal expenses, but did generate income feb-april. As of June 2024, my partner stepped out of the company and agreed to give me full ownership. I have tried to get clarity on official things I need to do to change the structure, but am a bit confused. From one I have researched, I need to file a form 1065 for the period of Feb-Jun 2024 when we were officially partners as well as schedule k-1s for each of us. From there, I can file a new EIN for the sole proprietorship. Is this correct/ all that is neccesary?

Additionally, after the partner had stepped out and it was agreed I was the sole owner, I did generate income from July-August 2024. How do I make sure my total earning for 2024 aren't double taxed and properly reflected.

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