I'm looking for advice on what I should focus on for my first real estate deal. Should we go with a SFH, multi 4 or less or the 5 or more places?

Here's an example of SFH in the area I am looking:
Asking price= $30-$50k depending on whether foreclosure or work needed
Usually 2-3 bedroom home with 1-2 bathrooms and maybe a basement. Around 800-1k sq ft.

Multi-unit 4 or less usually:
Asking price= $40k-$130k depending on number of units
Usually 2 bedroom units with 1 bathroom around 700-900 sq ft.

Multi-unit 5 or more usually:
Asking price= $130k (5 units)- $275 (a seven unit with 6 fully rented)
Usually 2-3 bedrooms with 1 bathroom and 700-1k sq ft

Since I am looking at where I should focus on for my first deal, should I just nix out the multi-unit 5 or more due to financing constraints or just look at the lower priced 5 unit buildings and forget about the seven unit one?
I have been estimating that the SFH go for $750 and the apt units for $500 (even though I know they go for more). Some of the apt units have all renter paid utilities and some have owner paid water.

I'm really only looking at maybe 10-15 properties in each category, with less available on the muti-unit 5 or more end.
These are probably C areas with C buildings. I am not looking at any that have more than paint/carpet/few things to do because I don't want to take on major renovation on a first property.

Where should I focus my search? Any thoughts? Is there something I'm missing?