Kindly refer to the following link(s):  


How to fix the Bride's Mahr (Dowry)?

The Dowry of a Woman in Islam 


Women asking for non-monetary things as Mahr (Reciting Quran, praying Nafl...)


Can a man change or lower (huge) amount of mahr agreed upon after consummating nikah


Is it compulsory to publicly announce the Mahr during Nikah?


Can Wife Sue her husband for Mahr & Maintenance he didn't provide during Marriage? 


Husband giving wife her Mahr delayed (50g of gold)



Islamic ruling on Groom taking dowry from Bride's family


Who pays the dowry, Financial expenses of wedding & sets up the house in Islam? 


Who should pay expenses of delivery of childbirth medical bills, husband or wife's family? Man taking dowry  


The woman can ask before the marriage, whatever she wants as her Mahr. The man has the right to accept and continue with the marriage or refuse and leave.


Can a husband force his wife to give him money from her mahr or income? 


She refuses to take furniture (dowry) from her father in her wedding, is she correct