You should not wash the farm fresh eggs before cracking them unless they are visibly dirty.
The farm fresh eggs have a natural protective coating on the eggshell which helps prevent bacteria from entering.
The coating also known as a bloom on the egg shell acts as a natural barrier against bacteria and when you wash the eggs and the barrier is washed off it can actually increase risk of contamination.
If the farm fresh eggs appear clean, it's best to leave them unwashed.
However if you do need to wash them you should wait until right before using them to wash them.
If you do need to wash the farm fresh eggs you should use warm water along with a gentle touch to minimize the removal of the protective coating.
If you do wash the farm fresh eggs and don't crack them open you should refrigerate them.
However even if there is dirt or grime on the outside of the eggshell it does not and will not affect the inside of the egg.
If you don't want to wash the eggs and there is visible dirt on the egg shell you can simply crack the egg over a separate container instead of straight into the dish you're cooking in to avoid getting dirt into the food.