It is something you already gave to someone else.It is possible that IF your student loan defaults and the holder of that loan obtains a judgement, that the judgement can be used to lien your property or garnish your wages.  

The one and only time I have ever collected on a judgement -flipping can be difficult but is doable.

Some states allow the lender to pursue the borrower for deficiency judgements.

Also check the judicial records and check for judgements or lis pendus.

I've heard of landlords winning judgements then selling the judgement off to a debt collector and moving on.

If she has property, cosigns and there is a judgement down the road then you are more likely to collect as you could then lien her property.http://www.nolo.com/legal-encyclopedia/lack-capacity-to-contract-32647.html

Is this is one of those judgement proof tenants where it's not worth going after?  

Against my better judgement I let here Put an offer on the Property which was accepted because her's was the highest and Cash, I made the $5K deposit subject to Accepted Over within 24 hours.  

I can see it in rent court . " Your honor , there are ghosts in the house , thats why we broke the lease "  Judge  " are these your ghosts or the landlords ghosts"   Tenant " They are just ghosts "    Judge "  Please bring me in proof of the ghosts "    Tenant " I cant "    Judge   " Judgement for the landlord" 

I don't think there's much one can do to change that mindset, but allowing emotions to cloud judgement and engaging in less than professional correspondences will only perpetuate the myth of the "greedy, evil, rich landlord".