Without inspection of the articles of association the transferability of the share cannot be assessed.
A share in an Austrian GmbH is not freely tradeable like a listed security. Transfer restrictions, pre-emption rights and call rights are anchored in many constitutions. Before binding commitments are made the current articles of association together with any shareholders agreement must be reviewed.
If consent requirements result, the necessary resolutions or waivers should be planned well before the notarial appointment. The focus page on share deal and asset deal offers more depth.