Is using a local attorney worth the extra cost or would setting one up online through a company like Legalzoom suffice?  

once you know where you're going and understand, for real, the costs, benefits and risks of rei, be it in your local market or across the country, in my opinion - a one to two page business plan will suffice.

Do I even require a business structure this early in the game or will a team consisting of an attorney and accountant suffice?

Simple statement such as "and or assigns" added to you contract after the buyers name will suffice.  

Or can my MI CPA suffice?

ESA forms obtained online do not suffice.

Does a promissory note suffice for the private lenders?

@Fernanda HerreraThere are several considerations that can go into the analysis of whether you need an LLC or whether a large insurance policy will suffice.

One deal makes enough commission to suffice for an entire year’s salary. 

The IRA is the buyer so when I show the IRA statement it has always been suffice.