Track them down and ask them if they want to sell.Good Luck!!

I am trying to figure out if there are permits/regulations that aren't present for a mobile home that are typical for a house that would stop me in my tracks. 

You are on the right track with BP.  

My question is, am I on the right track currently, should I continue with SFR's transitioning into MFR then into Apartment Complexes, even though I have some experience managing a friends MFRs?

Now if we're on our 10th deal together and reducing to 3% is the only way to make the numbers work I would consider it but these are all cases by case Andrew track record and history together (or lack thereof) speaks volumes. 

You're on the right track though.

Then run a new and separate offering on the next project, rinse and repeat until you've built some track record...

There isn't much traffic over head but still.want to make it as peaceful as possible. 

I can give you a few sites as well and Wayne is def on the right track!

Surrounding yourself with strong people with proven track records in the areas you are interested in investing is key.