Buying a multifamily unit directly from owner without broker

[Kwame Banahene]

I having been looking at a 2 flat that the current owner wants to sell directly to me. Unfortunately, I am a relatively new investor and have absolutely no experience in the process of direct sale that I would be financing. I had representation from an agent in previous deals. I could use some incite on the whole process of direct purchase without broker representation. Do i just need to get a real estate lawyer to represent me?