By Ron Melvin, Realtor  When you’re ready to buy a home in Contra Costa County—whether it’s in Concord, Pleasant Hill, Walnut Creek, or Martinez—one of the most important decisions you’ll make is choosing the right realtor. While the first steps in buying a home can vary (some start with getting pre-approved, some analyze their finances first), I always recommend starting by finding the right realtor. After all, the realtor you choose will be your guide, advocate, and partner