A dual relationship means that you would be connected to your therapist in another way other than as therapist-client. It is very common for people to want to be friends with their therapist if they trust and have come to like and respect their therapist. For the relationship to remain therapeutic, it is necessary for the therapist to prevent this from happening and keep good boundaries. Other boundary crossings might include a therapist hugging or touching a client in any way, especially if that client has expressed discomfort with being touched. Some clients want to shake hands or give their therapist a short hug after a session.
Some therapists practice out of a home office.
It is important for you to feel comfortable in this type of setting and know that your sessions will not be interrupted by phone calls, children, animals, etc. It might be helpful to talk with your therapist about how you will handle the situation of seeing each other in public. Some people do not want anyone to know they are in therapy and some people want to introduce their therapist as their therapist. Whatever you prefer, your therapist should respect your wishes.