You said "There has to be an exchange of money. A hire. " I agree. You aren't suggesting there was NOT an exchange of money and a hire here are you? Somebody hired and somebody paid. The evidence STRONGLY implicates Charlie and Donna in both circumstantial and direct ways.
Let me try to have you look at it another way. Do you believe there is proof that money was exchanged to hire Garcia and Rivera? Did Rivera say the purpose of the hit was to benefit the Adelsons? Does the evidence support proof that Katie dumped her kids and spent the night with Charlie then drove to Rivera's with a bundle of cash? Didn't Jessica confirm that along with Rivera as well as the phone location pings? Does the evidence support that the money was stapled? Does the evidence support that Charlie stapled $100 bills into $1000 stacks just as the payoff money was described? Isn't there a ton of evidence suggesting consciousness of guilt by both Donna and Charlie? Did the evidence of an impartial witness support that Wendi admitted Charlie investigated hiring a hit man and found it would cost either $15,000 or $50,000?
You seem to think there must be direct proof of specific money changing hands. I guarantee you all 12 jurors understood that Charlie paid for this hit and I can't imagine anyone thinking the same evidence wouldn't support a conviction of Charlie. Here's the definition of conspiracy under Florida law:
"A person who agrees, conspires, combines, or confederates with another person or persons to commit any offense commits the offense of criminal conspiracy."
In my opinion there is absolutely no question that there is more than sufficient evidence to convict both Donna and Charlie under this statute. Could they get off? Possibly. But that isn't the issue. The question is will a jury be allowed to consider the crime and I say YES against both emphatically. Georgia also clearly agrees and intends to make more arrests according to her statement yesterday.