I'll give some unwanted advice. I apologize in advance, but like mr wonderful on shark tank trying to express something very important over my iPhone, this message my not be received with the love that it was intended to.
Do not partner with your coliegue. There is no point to partner with someone that should just be an accountability partner(don't know that that is, msg me, search it...). It can cost you a lot of money!
You both are bringing in a similar amount of money, credit, time, ability, motivation...? Then you both need to buy a deal, and help eachother as friends. Sure, there is economies of scale, but the return compared to the start up failure rate is not in a positive direction. If you are confidant in yourself you would be willing to do this. Your future partner should prove himself also.
Things are different if one of you needs the other due to fraud, criminal proceedings, know that you are not a good business person and will rely greatly on the other to keep the business going... (Just imaging a long list of not so good reasons to do it yourself).
There is huge benefit for you both to open separate companies (pm me for the contact information of John Hyre and Gina Crosby for really affordable entity formation, a local cpa real estate focused team).
If you guys really want to get in bed together you should try to get ahold of me or even better yet, some of the other much more experienced and intelligent members in Columbus to open your eyes on the real pros and cons of what you plan to do.
If in one year you both still want to partner, then do it then. With two new people partnering together it's like having dumb and dumber (I know you guys are smart, so that's just an expression) partnering up so that they can burn two years worth of savings on a corperat divorce (not sure if that is faster and cheaper than a real life divorce, ask my friend that is still trying to divide properties after 3 years, many attorneys and many court hearings for code violations...).
To answer your question on best ref for company formation, it's john and Gina.
Also, one more unwanted advice (#2), you guys sound like you are waisting a lot of time. If you continue at this speed, you risk never starting at all. This entire start up process should be fast once you decided that you really want to do real estate. Sure, there are a lot of risk factors, excuses really.
I hope to see you guys get started right away. If you guys are not in a high income bracket then I suspect your attorney will recomment an LLC and if he is honest, maybe even just to each of you to buy one property in your own name and test it out.
Hope this helps and looking forward to your success!
Phil