You should see some of the reports that banks are releasing about their account holders and how much they have eaten through their savings. 

How do you know if the bank is the first or second lien holder?

LOL A lien holder doesn't have cc, they just get paid off!

When a junior lien forecloses judicially, do they name the senior lien holder in their case?

That and buy and holders are usually of a different personality type than flippers so they don't just pull a trigger as fast.

If you still have outstanding loans then "Seller Financing", as far as I know at this point in my education and experience, would be very risky as the holder of the loan could request full payment from you due in 30 days.

first off you to need to head to the register of deeds to check title and make sure all lien holders are listed along with defendant. im from milwaukee, wi and see no reason checking to see if they have warranty deed or quitclaim bcuz whatever deed they have and its listed with the defendant they are a gonner. u will receive a sheriff deed. now bfore u waste ur time checking title go out and sweet talk owners or renters into letting u view the property. make sure u are really nice and u should get great results. month of june i netted around 275000.00 and all from properties i bought from sheriff sales

are there any businesses that guide SDIRA'S or advise holders on investments that i can contact?

However, back taxes must be paid either by the tax lien holder or they are sold at subsequent options and you loose your right to redemption, as the junior taxholder can redeem to you and get out of the game. 

It makes sense that they would work through non-profits, rather than sending the voucher holders out to the wolves.My guess is that sequestration has probably eliminated most of this particular program, though I may give a call over to the PHA and what is available and what their process is for becoming part of the program.