I'm just gonna mention something in case it isn't crystal clear.  

I thought you meant CRYSTAL meth was found on the property! 

That general area has quartz crystal deposits.

Unless you have a crystal ball and can predict the future, you should get into investing when you are back in the States with your saved up funds. 

My advice would be to give him two crystal clear options.

After he left she was ok for a couple months until she went off her bi-polar meds and resumed drinking heavily and smoking crystal. 

Obviously this may result in excluding certain applicants that may have been good tenants but not having a crystal ball means I will error on the side of caution every time.If individual landlords choose to take the time to determine if a applicant, that does not meet their predetermined screening standards, is worth the risk all they must accept that they are not being consistent and are placing their screening standards in jeopardy.

Crystal

Failure means I took action--in so many ways and with education, but without a crystal ball.  

First of all, its not like this is some dilapidated "Breaking Bad" RV that looks like it's used for cooking crystal meth.