There are many variables at play during a real estate purchase; so when you have the chance to control one of those factors, it can be very appealing. That may be one of the reasons most buyers choose to "lock in" their mortgage rate.

Now the question becomes, "How do I find a qualified inspector?" Referrals are probably the best bet. Ask your real estate professional, friends and family who they recommend. But no matter who you choose, you need to ask a few key questions.

1. Are they a licensed home inspector? Most states require inspectors to hold a professional license. Ask to see the license or that a copy is faxed to you.

2. What are your qualifications? Find out if they take continuing education courses, how long they have been in the business and how many inspections they have completed. You may also ask for a list of references.

3. Are they a member of a professional association? There are national and many state associations for home inspectors. Ask to see their membership ID.

4. Are they insured? Inspectors or their employers should carry Errors & Omissions (E&O) insurance as protection in case something is missed or overlooked.

5. What process do they follow for the inspection? Here you want to find out if you will be able to attend the inspection. (Note: this is a great time for you to learn about the property first hand.) Also inquire about the cost and when the final inspection report will be ready.