The reason for consulting before listing or making an offer to purchase is because it is far less costly to spot and avoid problems rather than try to clean them up or litigate after they occur.
In the normal course of events in a residential sale, the contract is made between the parties and then later brought to a lawyer. This is fundamentally flawed, for the lawyer should review the contract before it is made. Just because the realtor uses a pre-printed form does not necessarily mean that all the terms in that form are a good thing.
It is not the practice of realtors to advise people to consult with a lawyer before making the most significant monetary contract of their lives because it might slow down and possibly stop a potential sale, and the realtor’s job is to make the sale.
What it comes down to (particularly with residential real estate) is that with a realtor you have someone who is a salesperson who can be very useful in bringing to parties together, but otherwise is neither trained nor experienced in ensuring that the contract is sound, whereas with a real estate lawyer, you have someone who’s job it is to see that the contract is sound, and who is trained and experienced in doing just that.
To make this concrete, here is just one example of many of how a realtor works to make a sale, whereas a real estate lawyer works to protetct the interests of his or her client. In my area, the realtors have taken to including a vendor disclosure statement as part of the contract. There is no legal requirement to do so. Some well intentioned realtors thought it would be a good idea, for it is soothing to a purchaser to have a checklist of what the vendor thinks does or does not need repair, so their association has adopted it as a standard practice. It has led to no end of litigation over the assertions vendors have made in those statements, but the realtors continue to use them because they help make the sale. When a vendor comes to me prior to listing, I advise that person to not make a vendor disclosure statement (among other advice). Obviously I don’t want to stand in the way of a sale, but my job is not to simply assist in the sale, but also to ensure that following the sale nothing comes back to bite my client in the ass.
Use one lawyer for all of your transactions. The more the lawyer knows about you, and the longer the lawyer knows you, the better the job the lawyer can do for you. Often tax matters, family business matters, family law matters, or estate planning matters may affect how the real estate is handled. A good lawyer will keep an eye out for both problems and oportunities of which you may not be aware, but can only do so by knowing all your circumstances.
Find a lawyer who specializes in real estate law and who works at a firm where there are lawyers who litigate real estate matters. That will help ensure that you are getting top quality advice from someone who has the experience you need, and who is aware of where real estate matters can screw up.
Having friends introduce you to their lawyers is a good way to start shopping around, but the key here is to keep shopping around until you find someone who not only is sufficiently experienced but also is able to communictate comfortably with you.