They are senior to their debt, so they can crush, make sur there are's any other secured interests on the property. worth the $100 or so for a prelim title report. 

I have found some sites provide considerable due diligence type information and others treat it like a national security secret. 

I have an ITIN, but no Social Security number as Immigration just delay and delay.

Otherwise I go through after they leave mark up the security despot and send it back. 

3. is it OK to ask a tenant to bring a certified check, as her security deposit ?

If not, he can sell it to you and carry back a note secured by a 2nd deed of trust.

Nevada secured over $150 million to help qualified Nevada homeowners.The U.S.

Below, are a couple guides for your review. https://www.biggerpockets.com/renewsblog/2007/11/26/demystifying-the-real-estate-rental-security-deposit/ (Security deposit laws)http://www.biggerpockets.com/renewsblog/2013/01/04/how-to-rent-your-house/ (house rental guide)

I was trained in Internet and Network security and that is a classic example of a scam post.

I chose the secure path years ago concentrating on my career in the Oil & Gas business while raising my children with intentions on picking it up again later in my career.