The title of the land will remain with the heirs of your father however, the tenant thereon will remain a protected tenant and you will not be able to sell the property without the consent of such tenant.
You can file a suit for claiming right of way to your property and also claim easamentary rights qua the right of way. You would have to say that we having been using the right of way all along.
Question is vague. However, your mother can surely buy a flat and gift the same to you. You will incur long term or short term captial gains tax in connection with the same when you sell it, depending on the number of years you have held the Flat.