If you receive an offer from a team then your agent will notify you and explain the terms the terms of the contract. Ultimately the decision is always up to you whether you want to accept the contract. There is very little negotiating room on the contracts delivered by the teams.
If you choose to accept an offer, then you will leave the tour relatively quickly to join the signing team in their city and start training. The team will provide transportation for you to leave the tour. They will also provide all room and board for the remainder of the tour and until the terms of your contract start. Your agent will guide you through this process.