>...This may vary by state/locale.
Yea might be different where I am. Like any signed document, I am sure a lawyer somewhere created the templates for the selling agreement, the purchase agreement, the loan documents and closing documents etc but I don't recall seeing any line item for a lawyer's time on any document nor did I ever talk to a lawyer. (Thank goodness for this as a real estate lawyer I know charges about 400 an hour. Fortunately there is nothing unusual about most loans/purchases/closings and lawyers don't typically have to get involved in each transaction - around here loan processors, escrow officers, etc actually do the work and they are much less expensive than a lawyer would be.)
When I say "you need a lawyer anyway", even if you used a realtor, a lawyer drew up the docs for closing, and you hired the lawyer who put together the closing docs, although you may not realize it. You are paying the lawyer directly as a line item in your closing costs, so they are technically "your lawyer." Most people think the realtor had something net-positive to do with the magic house-transfering documents, but, not really.
This may vary by state/locale.