Montreal - "I want a 2024 1st"
Calgary - "Only if it is our own pick that is #20-32 Overall"
Montreal - "OK well then if it is a 2025 pick then I want the earlier of yours and Florida's"
Calgary - "OK but only if they are both outside the top-10"
Montreal - "No, no... If your own first is a top-10 selection but Florida's is not then I still want Florida's 2025 1st."
Calgary - "OK"
Montreal - "Well what if Florida has a lottery pick in 2025 which pushes the pick out to 2026 and your own 2025 1st is outside the top-10, but Florida's pick is better than yours?"
Calgary: "OK I will give you a 4th round pick in that very specific scenario."
Montreal: "Well what happens if both you and Florida have a lottery pick in 2025"
Calgary: "...ok you can have our 2025 1st UNLESS it is #1 Overall. In that case we keep the #1 selection in 2025 and you get a 2026 1st (the better of MTL/FLA) and a 2025 3rd"
It's simple
Online EHM league GMs: "Here's our trade proposal, with conditions."
League commish: "No way I'm reading all that. Trade denied."