FAQ

Can a broker change the sales system during the negotiation?

Yes that is allowed. 
Sometimes there are so many interested parties who offer or approach the asking price that it is difficult to determine who the best buyer is. 
In that case, the selling broker can – in consultation with the seller – decide to break off the ongoing negotiations and change the bidding procedure and then opt for a registration procedure, for example. 
All bidders have an equal chance to make the highest bid. 
Before changing the system, the broker must of course first fulfill any commitments made.