Buyer agent really needed?

[Dave S.]

Looking to contract and close a two investment property deal directly with the seller. No agents involved. Since it's my first time doing this (by myself), I just don't want to overlook something or delay something. So are buyer agents really needed? What purpose do they serve at this point of the process that I can't do myself? I'm always told that an attorney should be involved (not needed in pa) to cover my a$$. So what is the most cost effective way to proceed???