1. You have been advised to enter in to a fresh leave and license agreement correctly since your present agreement will not ge you any where. Once fresh agreement is entered into you can upgrade yousrself as a bonafide claimant for specific performance as per the agreement. 11 months has been suggested since as per W.B. Premises Tenancy Act, leave & license agreement for 11 months is not required to be registered. You can verify this aspect locally. Once notice is issued to her last known address or the address specified in your agreement, it will be treated as a valid service even if it is returned,
3. It depends on the load on the Court. Hopwever, it will certainly be much quicker to be disposed of in comparison to cases related to tenancy agreement,
4. There is no such need to make both daughters as parties. You can lease your premises to one daughter and allow her to stay with her family.