An alternative to buying from an agent is to buy at auction, which has become popular in recent years, especially when property prices rise.
In Australia, property sales are made through real estate agents with the 'offer and acceptance' method. Another method is to buy through online property auction, and the popularity of this method fluctuates both the percentage of properties on offer and also the number of countries where it is the dominant method of sale. There are various websites like Sold Online that provide a platform to buy and sell property online.
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In certain areas in some countries is not possible to buy a property except by bidding in the auction. There are some reported "behavior" in connection with the auction and how they are performed.
The government has stepped in several times to set the standards of behavior and of course because of the popularity of the auction can be reduced.
In some countries, people who want to bid are asked to register before the beginning of the auction. Vendors can set up a secret, and to bid the reserve price reach or surpass any offer need not be accepted.
While some countries provide cooling period property transactions usually do not apply to sales by auction. Sales are made "on the fall of the hammer" that all deals there is no higher price, and the auctioneer states that the property is sold at the last price offered.
Perhaps the vendor is ready to offer a written guarantee. If so, read it carefully and keep a copy in case you need it.