Sheriff sale help!!

[Grant Ancelet]

Talk me out if a sheriff sale!!! Am I missing something?? I researched judgments and leins.... nothing on the house.... I found out the max bid from the mortgage lawyer... it's well within budget... the house needs work but in a great neighborhood... so what else is of concern??? 

I've flipped a few houses and I'm familiar with the work involved and costs, etc... I'm particularly asking about the sheriff sale side of things....  what else should I look for??