The biggest issue that you are going to run into here is that the home was vacant. 

I've had 2 issues with tenants not paying rent resulting in them leaving and yes they left a mess, but we cleaned it up, got it re-rented (for a lot more money as there are rent caps in place in that area) and moved on.My first rental was accidental-I bought it to live in and moved and converted it into a rental. 

For example replacing plumbing in a $1,000,000 home costs the same in a $3,000,000 home.Rick’s comment above regarding “handymen” and not pulling permits is going to become an even more serious issue in CA with assembly bill 968 going into effect this July.

Mostly this hasn’t been an issue, more often than not since I work 3rd shift I end up having to call my handyman about something between 6-7:30am prior to getting off work at 8:00am.

Remember to file as a foreign corporation in any state where you plan to do business, especially once you start acquiring property, to protect your corporate veil.Lastly, my Disclaimer: This is not legal advice. :)

I need to know if there's a legal form that I can have the workers sign stating that I am not liable for anything.

Luckily for us the issue was not huge, but we missed the inspection window before we found that out. 203(K)’s have higher rates than standard loans, so consider the timing of your refinance (especially in todays environment).

While the general principles regarding LLC ownership, asset protection, and taxation may apply universally, specific legal requirements, regulations, and tax implications can differ from state to state.Good luck!

There is ample information on the clerk's site telling you that you may not get clear title, and warnings as you register to bid that you should seek legal counsel if you're not sure of what you're doing, and that there are risks associated with legal auctions.  

Heavy rehabs or rehabs that are bigger than the purchase cost range from not allowed to case by case to no issues, so all over the board on that issue.