The best way is to ask friends and relatives for referrals, but make sure they have actually used the broker and aren't just dropping the name of a former college roommate or a distant acquaintance. Learn all you can about the broker’s services, communication style, level of knowledge and approach to clients.

Another referral source: your real estate agent. Ask your agent for the names of a few brokers that he or she has worked with and trusts. Some real estate companies offer an in-house mortgage broker as part of their suite of services, but you’re not obligated to go with that company or individual.

Finding the right mortgage broker is just like choosing the best mortgage lender: It’s wise to interview at least three people to find out what services they offer, how much experience they have and how they can help simplify the process.

Check your state’s professional licensing authority to ensure they have current mortgage broker’s licenses in good standing. Also, read online reviews and check with the Better Business Bureau to assess whether the broker you’re considering has a sound reputation.

NerdWallet writer Hal M. Bundrick contributed to this article.

A previous version of this article misstated the agreements some brokers may have with lenders and how brokers are compensated. This post has been corrected and clarified.