What are the benefits of using one of their lenders versus my own lender? Won't my Realtor know a lender? These are questions every new homeowner asks. There are so many lenders to choose from but getting the best deal and best service is important when buying a new home! That's why it could be better for you to use a builders preferred lender. Builders may not insist for you to use a preferred lender. I would suggest shopping for the best loan product available that fits your situation.