She being an employed person with handsome salary, she may not be eligible for maintenance amount from you. However you may have to pay maintenance to your minor daughter and may also have to share her educational expenses. Your daughter's educational expenses are to be share by your wife too since she is also employed and drawing a good salary.
You can repudiate her claim for maintenance on the above grounds but dont do the mistake of voluntarily disclosing your salary details. The burden to prove your salary is on her.
However please be aware that the property is jointly owned by both hence she may claim partition and separate possession of her share in it.