cap rates and multifamily research

[William Bustos]

A couple of question hope this is the right place:

1. Cap rates in my area SFV of Los Angeles. Where is a good place to find realistic cap rates for the market and submarkets.

2. Resources of find multifamily for sale?
I know of craigslist and loopnet what are your opinions
on these and the is it worth the money to pay for loopnet?
Are there any better ones?

3. Auctions for multifamily do they happen? I saw some in the
REDC book, but are they a good value play? does anyone
track results of auctions?

4. Downpayments people talk about 0% down what is a real downpayment need for the banks to loan on a property?

5. Software, can you guys recommend good software to help analyze a multifamily deal?

thanks for all the help