Business Formation CPA and Non-CPA partnership

How would a partnership that is owned by a CPA and a non-CPA be formed? If it was two CPAs than it would be an LLP. If it is one CPA and one-non CPA would it just be an LLC?

Can a PLLC be modified for a partner to be a LLC so that I wouldn't have to file to all of the paper work over again plus the fees?

I do not know the laws in Hawaii, which govern this.

I am in South Carolina. At the time, they required majority ownership to be by the CPA, defined as 66 2/3%. For simplicity, we just did a 67/33 split. Now, the state allows simple majority split for ownership. Both of my CPA firms have been LLCs and I am noticing more firms adopting LLC formations instead of LLPs, PAs, etc.