This is a serious Halachic Question that needs to be addressed by a Rav. The one who asked this question added “Because dating can be very expensive!” Expensive or not, the question remains can one use Maaser Money for shidduchim?
I just spent some time searching for an answer and didn’t succeed.
I hope that a Rav will see this question and respond.
Can the YeshivaWorld editors forward this question to a reputable Rav?