I can answer a few of your questions as we are going through the process with our 2018. I was told that it is highly recommended to get an adviser...which we did. We were fortunate in that we are working with a local guy who came well recommended. He has been awesome. We will actually meet with him early next week to get the full lowdown on the draft along with who is currently interested and what to expect on draft day. Chances are very slim that my son will choose minor league ball over college but we are keeping all options open for him right now. The only obligation we have to our adviser is that we are honest and forthcoming in regards to my son's history and if my son is drafted a 5% commission. If our son is not drafted or foregoes the draft, their is no obligation on our part. I received a booklet with obligation of agency/adviser but don't have it with me now. That's about all I have right now. Best of luck to you all!