Sometimes it is best to not have a family member or friend represent us in a transaction. This is a business relationship based on trust and appropriate professional distance. Analogy, not a good idea to use your ex-husband's brother in law to represent you in a complex divorce matter.
As to your specific question, phone interview five agents, and pick an agent you trust. If you don't like that agent, easy enough to find another! Whomever you choose, be upfront about what you are looking for, preferred mode of contact, followup frequency expectations. Some people want only positive feedback or calls when an offer comes in. Others want text messages or phone calls after every showing. Be clear whomever you decide to work with.
Last point, you didn't indicate if you are obliged under a listing agreement, trying to sell a house or buying. You need to familiarize yourself with the listing agreement you signed and look for penalty and notice provisions required. Most listing agreements have some teeth to them. Most agents dont want to force you to stay with them if you are not happy. Read your document set, and talk to your agent about changing offices.
As for selection criteria, you must realize that some agents have 50 listings and spread thin with hired assistants handling all the details. Other agents haven't sold anything all year and are not in the active practice of real estate. My suggestion is to go with a full time, intermediate volume agent that can provide you with personalized service and attention to detail. Like me! Call me if you care to discuss the matter.
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