As Michael indicated, this sounds like it is heading the direction of a "short sale." Meaning the seller is approaching the bank to see if the bank will accept less money for the sale than is owed on it. If this is the case, as you can appreciate, banks are not very fast acting when deciding to lose money.
On the other hand, the delay could alos be that the seller is exploring other means to cover the total amount owed to the bank.
The "Eckler team"
They (the seller) might owe too much on the home and are looking into a short sale situation. In other words, your offer could be less than what their payoff would be and are looking into their options. Buying AND selling real estate can be a somewhat hard decision. I know you are probably anxious, but try to be patient. I hope this helps. The very best of luck to you.
Michael D Delp
4802 Old Bethlehem Pike,
Telford Pa. 18969