The Mind card, Seven of Wands, indicates that there is a good deal of proactivity from Julius. He is taking the initiative to reach an agreement with Lucas and has already put in place a plan of action. This suggests that Julius is well placed to talk to Lucas and implement the necessary steps to reach an agreement. This card is also a sign of trust and suggests that Giulio intends to keep his promises.
The Corps card, Two of Wands, shows that Julius is ready to face any obstacles that may arise in the negotiation. He has the resources to carry the project forward and can count on the help of the other participants. When it comes to the body, this card indicates that Julius has the strength and determination needed to achieve the goal. It is a good sign as regards the trust to be placed in Giulio to conclude the agreement.
The Soul card, Queen of Cups, shows that Julius is a reliable and sincere person. He's trying to be honest with Lucas and showing empathy for the Wizard. While we may not know what his true intentions are, this card suggests that he is motivated by a desire to build a solid relationship based on mutual trust.
All three cards gave positive signals regarding the trust to be placed in Giulio. The Seven of Wands indicates that he has taken the initiative, the Two of Wands reveals that he has the necessary resources to carry the project forward, and the Queen of Cups confirms that she is trying to show empathy and sincerity towards the Magician Lucas. So, based on the papers, Lucas may feel pretty confident trusting Julius with this deal.