It is ok for a younger brother to buy a house with his sister's qualification. As long as you discuss with your other half and agree to buy a house in your sister's name in the future without affecting the feelings of husband and wife, it is entirely possible, because after the head of the real estate falls in your sister's name, it will be very convenient for you and your wife to buy a house next time if they don't have real estate, so it is entirely possible to buy a house in your sister's name as long as both husband and wife agree and agree.

Conditions for qualification examination of house purchase

A natural person who has no house under the family name, has a loan record and has full capacity for civil conduct; Family members are divorced or widowed, childless, have a stable source of income and the sum of the loan amount approved by the social security department. * * Family members of housing subsidies, housing transfer and commercial housing, with legal identification, and registered residents of other provinces and cities (including foreigners) can buy a set of affordable housing in this city.

Residents who already own a house but want to apply for buying a villa or holding a residence permit in Shanghai should also provide proof that they have paid personal income tax 1 year or more in this city in the above three years; Family members who have real estate under their names are not eligible to purchase houses for the time being; Minors have real estate under their names and cannot buy affordable housing alone; If a house has been purchased, a letter of consent or related materials shall be issued.