The non-refundable deposit turns into the security deposit after the move-in inspection and possession takes place.  

If it were me and the tenant does not show up to court, once given the writ of possession I would consider the items abandon and dispose of them. 

Tenant can also say they paid your partner who is no longer the owner as the tenants defense in this situation and can delay your gaining possession of the property.

You have already gained possession, so the payment is on the judgment.

I performed a quiet title action to clear the title and take possession of the property vs having to foreclose.  

So you leave your prized possession of property to the children, and they don't give two hoots about it, and will let it go for pennies!

I'd be more concerned about the hoarding, but again, tenants who are willing to live in C and D neighborhoods tend to overvalue possessions, since replacements or upgrades of said possessions are not in their future. 

You need to remember when we lease a property, we give up the Right of Possession to the tenant until such time it is given back voluntarily by the tenant or involuntarily by the court following all legal procedures.

In 2011 I bought 5 first lien notes, all of which had seconds on them and all of them failed to be redeemed, so I successfully got possession of the houses.2 of those houses I negotiated with the owners to remain as tenants who to date have never been late on a payment. 1 house was vacant, I filed an affidavit of abandonment and took possession in 30 days instead of waiting for the 6 month redemption period in MI to expire (not sure if the abandonment provision applies to purchasers at sheriff sale, but the risk worked out for me).

At this point, even if the driveway is almost completely on your lot, you would lose a adverse possession lawsuit.