Once you have moved out, you no longer will get owner occupied rates!

Quote from @Yemisi Dinkins: As a property owner, I would never sign a Master Lease because I would give up control of the property so someone else could profit from it.

Is buying a new owner occupied 2-4 unit multifamily property every year using 3-5% down payments a good strategy to scale?

We do everything we can to be transparent with our owners.

IE if you are wanting to wholesale which I don;t reco today, its too hard, you want a list of high equity owners BUT BUT the value is in figuring out a source of stress, a reason why the owner is on the virge of wanting to sell. 

I dont have experience buying but have looked into it, from what I can tell, if you buy it at a tax auction, The owner has a certain amount of time to reclaim the property.

Most credit unions do not help with non-owner occupied properties. 

It requires significant work, and I'm concerned that some additions made by the previous owner may not comply with building codes.

The owner is asking 600k but I'm not sure his valuation is accurate.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.