1. She has the right to stay with you at the place where you are staying so long she stays as your wife,
2. Even after filing the DV case she can happily enter into your house and stay put in to any room she wishes to, till she is divorced,
3. If you do not wish her to enter in to the said flat, you can let it out on rent and start staying in a rented house,
4. Please note that she has the right to stay in your rented house and if you resist her such entry, she can very well approach police station and you may be arrested for your act of not allowing a lady in entering into her rightful accomodation,
5. You can sell it of the sales proceeds will earn interest which will add to your monthly income and also you will not be able to deduct the EMI paid towards the loan on that flat and your monthly income will further increase,
6. So, letting out the flat on rent is the right option for you.