Sellers not co-operating on closing date

[Sanjay Christopher]

Hi,

I am a new investor trying to learn along the way. I bought a townhouse and my loan has been approved. With the initial offer to the place we agreed on having the closing date as 7/13but as of now 3 days left sellers not co-coordinating the day/time to close. I am going to rent this place. This place already is non-owner occupied, tenant is moving out as of personal reasons and on a month-month lease.   I have already listed the place for rent and I got a bunch of people wanting to see the place. I was hoping the closing will be this Friday I could do some cleaning and have an open house on the weekend to prospective tenants.. I am kind of frustrated with the sellers. If I tell the sellers I am walking away if the closing date is not met, am i legally obligated in any way? Also, can I sue the sellers since they agreed on something but not willing to close on the said day?  

Any thoughts and guidance is very much appreciated.

Thanks

Sanjay