--Here I am looking at their body language and to see how confident and knowledgeable they are about taking on the job.

White trim, garage door same color as the body of the house. 

If they are smoking pot in your unit the smell can soak into the walls and carpet which can drive down the resale value and chase away a lot of good future renters.

I can smell em through the interweb.

Similarly I want to have a body like Arnold Schartzenegger, but instead of going to the gym I'm sitting here reading a forum about investing, so I shouldn't be surprised when I don't have bulging biceps. 

You can't tear sheetrock out of a home while in contract (typically), but you can sure as hell give that dog a chance to smell around and see if it detects anything. 

I'm a bodyworker (Rolf method of structural Integration), a fairly obscure method of healing the human body, but I love it and it is what brought me to Utah. 

 I am wondering if any body has advice on preforclosures in the state of Texas thinking of trying to wholesale or are preforclosures risky business for wholesaling?

To me a wholesaler should work distressed sellers if any body.  

Smell?