Gst purview

We are having a partnership firm which is doing business of sub letting of building. the turnover for Rs.10lakh has been achieved till april to june 2017. it will cross limit of Rs.20lakh if same business is carried. therefore we wish to cease the business in this firm to prevent gst. and can a new partnership firm be framed doing same business with same person as partner for the remaining year. Half of the rental income may be taken in the new firm and half of income may be taken in individual name of partner. bill shall be raised to one and same party. Please advice does this model attracts GST evasion as per law.