Using an attorney to manage a process that is already spelled out is a bad idea. The attorneys have already done their work in laying out the forms/process.
Having a real agent make an offer is more appealing to the selling agent than a buyer on their own. The agent has no idea what they are dealing with if you go it alone.
I would start calling moderately experienced agents who are independent. Interview them and make offers to the ones you like.
Or, if you go it alone, make use of an experienced escrow agent. They are the ones who really know the process.