@Joseph Hamaoui, Since 1031 is a federal statute there are no extra hoops when selling in one state and buying in another other than knowing any particular state nuances when it comes to state taxation.  

I presume Idaho because of your location but plenty of people buy in multiple states.If the six( 6) month statute applies in your jurisdiction, your challenge is that you don't have an owner or estate rep with standing to provide you what you need to eliminate the right of redemption. 

You need to read your state statutes ASAP and then take whatever action is necessary.

Isn't there a 'statute of limitations' to payment disputes? 

Shoot me the statute number I would love to give it a read and make sure I am complying with all local laws and regulations. 

It's usually written by the local Realtor board and is fair to both sides of the transaction in accordance with local statutes.

Where could I find that statute for Freddie?

I did a quick search of Pennsylvania state statutes and the laws governing security deposit are very clear. 

maybe this will help:https://www.revisor.mn.gov/statutes/?

For example, in New Hampshire, there is a statute that requires that the property can only go back to the government, not to a 3rd party.