Non warranty, transfer of shares, and risk level

[Aidan Mulligan]

Lets run the timeline

2010

Grantor: "B" Wholesale

Grantee: Maiers

Special Warranty

(signs point to a Foreclosure sale)

2009

Grantor Henderson

Grantee: "B" Wholesale

As Substitute Trustee

(Signs point to a foreclosure)

2007

Grantor Humphrey

Grantee Henderson

Non Warranty

(Humphrey sold share in property to Henderson)

      Transfered to Trust in "A" Wholesale

2006

Grantor Abernethy

Grantee Henderson and Humphrey

General Warranty Deed

So my question is two part. 1) Why would someone sell their share in investment property through a non warranty deed? 2) What is the risk level in purchasing a property that was sold with a non warranty, then trusted and sold through foreclosure. Disclosure, I'll be hiring an attorney but wanted to at least see if this is even worth the time.