Damn.. that sucks! New Western has a bad reputation in Los Angeles as well. I heard that not just from other investors but from wholesalers who supply them with listings as well. NW typically does a high pressure fast escrow tactics... even have you bid against other investors... often double escrows... and sometimes even delayed possession.
That said, I have just closed a 4day escrow with New Western as well. But I am fairly seasoned investor/flipper so I knew what I was getting into... and was able to identify that it was still a fairly good deal ( that is $230K below market price)
Although, my experience went fairly smooth so far... I likely won't deal with them again. I did not like the delayed possession tactic because it delayed my timeline to get previous owners out. Plus I found out they made $75k margin, once I got the title recorded and saw the purchase price on record. This led me to think they have unethical practices and they essentially robbed the previous owners of their home. Shady Realtors... bad karma!!!
At any case, Im not entirely sure if you can blame New Western a 100% on your loss ( in my opinion). With every deal...especially wholesale deal, you must always do your due own diligence. Never trust seller's ARV or rehab estimate. Did you buy this property site unseen?