How many crafting contracts can I make at once?

[NovaShard]

Also, can I drop a craft if I hate it?

[Aimo]

You can pick up 2 crafting and 2 gathering. I'm pretty sure you can drop them, though I don't recall how. You lose the progress if you drop a craft.

[NovaShard]

thanks :D

 

[MoskmaN]

you can drop a crafter house , press L and do right click on the tab and put Leave.

[TrickShots]

You just have to start over when you join a new house, and if you go back to the original guild your former progress isn't kept.