Conveyance of real estate to create either joint tenancy with right of survivorship or tenancy in common with grantor

Any conveyance of real estate made by the grantor to the grantor’s own self and another or others, either as joint tenants with right of survivorship or as tenants in common, shall, if otherwise valid, be as fully effective to vest either an estate in joint tenancy with right of survivorship or an estate as tenancy in common, as the case may be, in such real estate, in the grantees named, including the grantor, as if the same had been conveyed by the grantor therein to a third party and by such third party to said grantees.