family members, then well known, frequent visitors and so on.
then meet the person outside and do some parallel walking. have the person stay far away enough that the dog will not become afraid of nor aggressive towards that person. try several of these meetings outside. you can give your dog treats for looking at the person - but do not ask the person to give treats at this time.
when your pup seems happy about the outside meetings, then you can walk towards the house together and have the person walk in first, then your dog. absolutely no interaction at this time. have the person sit still, ignoring the dog. keep 