In my area, I go for attractive efficiency that is as bullet-proof as possible.  

Medical costs  caused unpaid loans and collections to accumulate and to created a credit profile of a borrower who did not pay any of her legal obligations.  

I'd also be interested in any aggregated source of data, if there is someone who collects data for multiple jurisdictions.Thanks in advance!

Some bidders will go after HOA liens in any position just to collect rents until a senior lien forecloses; they never expect to get clear title 

My overall opinion would be to stay clear of investments like this as no one I know is personally doing this and that to me should be proof enough that its not working. 

There are federal and state programs for foreclosure prevention that are free of charge The hamp program has helped thousands of homeowners Short sales,deed in lieu  etc are some of the ways.The best way is to contact your lender for options Many companies have been convicted of crimes for collecting false fees in foreclosure fraudHere is a great web site without any charges http://www.homeloanlearningcenter.com/yourfinances/foreclosurepreventionresourcecenter.htm

Inorder to bid on HUD properties you need a realtor and proof of funds.

Also, if you get a monthly spread after the mortgage is paid, how do you collect it as well?

So basically do you think if my pocket cash after I collect rents from my first building is good.

You need to start the eviction and only stop/delay when you have proof that they have started this process.