Answer:
Before talking about with whom I may have a vertical type of relationship, it is important to define what this is, in order to know who I have that with. A vertical relationship, in human relationships, is defined as a type of relationship of superiority and inferiority, or, up and down. Basically, the two people relate with one another in an up and down manner, with one being superior be it due to more knowledge, or status, or power, and the other being inferior for the same reasons. Althought usually considered negative, when there is an abuse of this superior-inferior ideal, they can also be positive, for example, in the case of parents and children, or in the workplace, given that the superior person uses his superiority to help the other below and shares those things that make him higher.
In my case, two people I have this type of relationship with, would be my boss at work, simply because he is my superior in status, knowledge and experience, and of course, my parents. They are superior to me hierarchicly in knowledge and wisdom.
What I do to keep a positive relationship with them, both my boss and my parents, is to acknowledge my limitations, and accept their wisdom and their desire to teach me and help guide me. I also try to keep myself open, not defiant, whenever they try to guide me, or help me, or correct me.