can i have two account of google adsense, one publisher and one hosted, can i keep these two accounts at a time?
No you're only allowed one account per Payee name. To get around this you can create an LLC. Of course this is only if you're earning a substantial amount and want to diversify your revenue risk of only having one account.
So you are saying that you have one account and your brother wife have another one? 2 persons 2 account is not the same as 1 person with 2 accounts