Some Realtors feel that the builder should use the Realtors contract. There are good reasons they don't.
As a real estate agent you will be asked about 100% of the time, if your new home shopper should have an attorney review the builders' contract. Of course they should!
However, they need to understand that thre is a 99,9 % chance the the builder's contract is not going to change. What the home shoppers attorney can do, however, is redline what the attorney believes to be the possible risks the home shopper is taking. Then it will get down to the builder's reputation, will it not?