Whom Should You Bring?
So whom, exactly, should you take to a final or near-final showing? Ideally, you should ask someone who recently went through the same process. New homeowners will have the details of their search and memories of how it went down fresh in their mind. Their experience may have brought to light issues that you need to think about. Or perhaps they recently had to make a similar decision that you're facing. Ultimately, they'll understand where you're coming from and how you got there.
Your sweet parents who live out of state are probably not ideal advisers. However, they may have offered to gift you money toward the down payment, and of course they'll want to see the house. Depending on how you've structured the deal with your folks, they might even technically be investors. If that's the case, they have some say in the matter, and you should take them to the showing.
Be Clear in Your Intentions
Have you already made your decision, and you just want to share your excitement with your friend? Great. If so, be clear up front by saying something like, "I know you may think this has some issues or you may not love the house, but I do and I know the market really well and the deal is done." It's not that you're closing the door on a conversation; you're just directing it so it will be helpful.
Alternatively, maybe you're bringing someone by because you want approval or feedback. If so, be clear on exactly what you want to ask. Also, think about whether the person is truly qualified to answer your questions. Your dad's uncle Ken, who used to be a handyman for the local elementary school, may be well-meaning and a sweet guy. But is he really the right person to assess the condition of the back deck or the plumbing? Probably not.