I suspect that a quad would be easier from a numbers perspective because they generally have a greater rent to price ratio.

Keep in mind that along with rent you also need to cover furnishings, utilities, cleaning staff, maintenance and supplies.

It's also unlikely that they have done any updating and kept up on all the maintenance so a lower offer is more reasonable and you have a renovation opportunity.Come up with a list of services you can offer to make it easy for them to sell (as-is) and to move (clean-up service).

I know typically a duplex is more expensive then single family homes.My question is, is it easier to get conventional financing for that types of properties because of it's potential to produce cash flow,or at last reduce what I'm paying for the expenses out of my own pocket.?

In a limited sense, I'd guess that the money you spend that will get the greatest return is cleaning, mowing, and painting. 

Makes it extremely easier to run a new one thats right.

@Keith MeyerPersonally I go for whatever is easier to handle and contact.

Start with the basics as others have recommended: get an entry level job, see if you can do a related field even if its just cleaning up around a construction site. 

I can bring value to your business by: answering leads from advertising; showcasing properties and handling tenants' issues; sweeping/cleaning; or even (immaculately) handwriting direct mail letters...

Raising them is preferable and will make it easier to sell but I've heard it is expensive.