Is a low offer a good idea?

While your low offer in a normal market might be rejected immediately, in a buyer's market a motivated seller will either accept or make a counteroffer.
Full-price offers or above are more likely to be accepted by the seller. But there are other considerations involved:

* Is the offer contingent upon anything, such as the sale of the buyer's current house? If so, a low offer, even at full price, may not be as attractive as an offer without that condition.
* Is the offer made on the house as is, or does the buyer want the seller to make some repairs or lower the price instead?
* Is the offer all cash, meaning the buyer has waived the financing contingency? If so, then an offer at less than the asking price may be more attractive to the seller than a full-price offer with a financing contingency.