In my 28 years of Land Lording, I have never had to evict a tenant (although did secure 2 Unlawful Detainers on tenants during that time but they moved before the Court dates) and never received a bad check (some of that is luck).

I have a judgment in my favor (Unlawful Detainer) and I am looking into the steps of a wage garnishment. 

Yes, more detains of what I expect over the phone would help.

BUT... he went thru a divorce a couple of years ago and you know how that goes, lost job, bad credit AND the biggie, an EVICTION, checking him saw "FORCIBLE ENTRY/DETAINER", if I'm incorrect on this one let me know but from checking the net seems like he was evicted and he wouldn't leave.  

Gives me more people to name in an unlawful detainer filing if rent lapses.

My recommendation is that you require all tenants to sign estoppels prior to closing.An estoppel is a simple document that outlines the basic lease information so that everyone is on the same page before closing:Tenant names and contact infoMove in dateMonth to month or annual lease (with expiration date if annual)Rent amountSecurity deposit held by current landlordLast month rent held by current landlordAny delinquent/missed paymentsAny other agreements between landlord and tenant (for example, the refrigerator was purchased by the tenant and is his/her property)If the seller refuses to provide this for you, and will not provide leases either, then my personal experience is that you are probably going to inherit some problem tenants after closing, and you could be leaving yourself in a difficult position - that is, having to deal with multiple evictions, or worse, unlawful detainer actions (the procedure necessary to remove a person from a property when there is no lease on record, the person is essentially a "guest" in the property).You need to decide if the deal is good enough to take on this risk. it could still be an excellent deal, you just need to be prepared for some management issues at the outset - good luck!

She has been arrested and detained in Maryland for resisting arrest.  

I am assuming you mean unlawful detainer action as in tenant did not pay rent ???

In Illinois, if a buyer of a land contract defaults, I must file a forcible entry and detainer case against the buyer to regain possession of the property.  

Does it actually detain or retain water?