How do I buy a forclosed property that is listed by a broker?

How do I buy a forclosed property that is listed by a broker?

Source: www.trulia.com

if i buy a legal duplex in brigantine and i condo it into 2 seperate units and sell 1 unit, what happens with
my loan, wont there be a lien showing, does the lender have to accept their duplex having to seperate deeds? if i buy a dulex for 400,000 and put 80,000 down and i sell 1 unit for 240,000? will they let me refinance?
Source: www.trulia.com

Brigantine nj. have a chance to buy 45 sq.ft. of dead space attached to my condo. will it be of much value?
45 sq. ft. at a cost of $3500. will need an inside door also has to be finished off. Can be used as a closet, storage or small office.Condo is about 1600 sq. ft. now worth about $550,000.
Source: www.trulia.com

Do you think that the prospect of new Casino development in Atlantic City will spark up the Brigantine Market?
soon? If so, how will it affect prices. I guess what I am asking is- is this the bottom?
Source: www.trulia.com