There was a counter offer made and there was one check mark changed that the seller did not notice. 

It may be likely you will need to move on if all of the counter offers have been exhausted.

The worst they can do is counter offer or come back at full price.

In this situation, for example, it would be easy to be so focused on the seller finally responding, but with a bad counter offer, and you accept it out of relief of the response and finally getting a house, not based on making a good deal.

Do you even bother making a counter offer?

Hello BP.. my first post... im in the process of purchasing a rental property.. waiting for my counter offer to be accepted.

I've had it happen a few times.The bank's addendum is technically a counter offer, so if you don't approve of the terms they are presenting to you, you don't have to sign it.Steph

After a few counter-offers, I eventually bought the house for 22,000.  

Assuming there's a typo in your post, a couple of things on buying bank properties:First, make an offer based on your numbers and stick to them, do not raise your asking price based on counter offers.  

He offered me $330,000 for my half acre on a corner at Dale Mabry and Interbay Blvd. two years ago to build eight Town Homes to come back with a counter offer after he sold his six Town Homes.