Is it possible that I may be accused of abuse of economic dependence ?
No, you can not be in a situation of abuse of economic dependence.
For this to happen, there would need to be a state of economic dependence, that is abusive, and that affects the competition's structure.
The details of economic dependence
For the majority of freelance missions, there can not be a state of economic dependence for this would mean that the freelancer has no other options but working with you.
This is not possible since Malt can show that each freelancer is contacted by other potential clients.
Our recomendations
However, we do recommend that you do not work more than 18 months with the same freelancer as this could be considered as blocking them from learning new practices and thus could make them less "employable".