We use self contained bathrooms on a trailer. 

Self-purchased and managed.

Since you are out of the country and seem inexperienced, when buying condos you also have to assess the viability and strength of the HOA, pending litigation and/or assessments, and parking per unit.

Therefore, I have been trying to study up on techniques used to make good offers and over come objections. 

Make sure you talk to a Banker or Loan officer that is well versed in both SE (Self Employed) income and also Non/QM programs.One tip I will give you as a Banker is open up a "Business Checking account" and for the next 12 months pay "Everything" out of that account. 

Hre are the key things to knowWhat you are bidding on - often oddball properties that are hard to identify and have little value are auctioned offThe true as is value of the property, The tax assessment can be way higher or way lower than the true as is valueThe local laws and how they affet your total costs and returns

The loan is with you, not with your tenant, so none of that means anything to them - in fact because you live in one unit and it's under 4, if you were self-managing you don't even have to abide by fair housing laws (at least on the federal level). 

Live in an area for 2-3 years, self-manage the property, and then relocate again, passing the baton to a property manager.I’d love to hear advice on any of these markets for making this approach a success!

Housing lots/ subdivision, self storage, commercial, parking, rv park,  etc3.  

I would keep the carpet neutral but something easily washable cleanable.As others have said, I'd add other decorative objects like artwork.