The order of distribution to other owners a share of the apartment offers to purchase your depends on the relationship between them. When good and their consent to the sale of your shares to third parties, it is sufficient to discuss it with them verbally and notarial waiver of each of your suggestions.
Otherwise, you need to send to each notarized offer of notice and a month to wait for the answer.
This procedure must be repeated each time you lower the price to sell the apartment for less than that offered to other owners of a share, you are not eligible.
If the owner of a share in the apartment is a child, the order of expulsion he offers the same. But only difference is that, because he has no right to make such decisions, you must address the document to their parents or other legal representatives.
The most complex procedure in the case when sold the stake owned by the child. In this case, the steps are the same, but the parents or legal representatives must obtain the authorization of the sale of shares of the child from the guardianship and guardianship.
The guardianship authority should provide guarantees that the living conditions of minors from the sale will not deteriorate. Ideally, the documents in the apartment, you're going to buy instead, and the obligation to allocate a share of not less than sold. Can also serve as proof of the account opened in the child's name at the Bank (usually the guardianship insist on the savings Bank, but there may be exceptions).
The rest of the sale shares is no different from the usual procedure: the search for a buyer, the design failures of the other owners or confirmation that they ignored to their proposals, collecting documents and registration of the transaction at the notary.