You have an advantage.

Single Families and Multidwellings both have advantages and disadvantages.Single families usually have more stable tenants, appreciate faster, and are easier to resell.Multifamilies usually have a better return and in some ways are easier to manage because they're centrally located.

What are the advantages/disadvantages of each of these different types of loans?

Some cities will have great elements of both and so there will be great advantages for both types of buyers.I'm no expert in the sub-prime scandals and will leave those questions to be answered by someone with a better feel for it.

however, letting them know BEFORE you obtain privvy information that you, as a realtor, can use to your advantage (rather than the seller), is very important in my opinion.i agree you don't have a "duty" to anyone without agency being established, but as a REALTOR, it is important to note that we are not supposed to use our status as real estate agents to give ourselves the advantage over others whether we have an agency with a client or not.all i know is that when i find things that are "advantageous" to myself, as an investor, the seller i speak to always finds out i'm a realtor within the first few minutes of our discussion.

This is an advantage for those who do not want to be stuck with a property that they couldn't assign/sell off.

I work with a number of Real Estate Agents that want to take advantage of the REO market in Michigan & don't know how to get started.

What advantages would that bring if any?

A depreciation deduction is one of the major advantages of owning rental property.

I'm sure if you search for 'Google Adwords' in a search engine, you will get a ton of information regarding how to best utilize AdWords to your advantage.