UNC Transfer 2024

Hi everyone, I am currently applying to transfer to UNC as a junior for fall 2024. I am applying for business administration and I would like to do Investment banking or investment management. I have completed everything except the letter of recommendations. I have acquired an academic letter of recommendation as required by UNC.
What is entailed in a personal letter of recommendation? I was going to ask a family friend to do one.

Please let me know of any hints and advice when it comes to transferring to UNC!