- best markets to buy?

Never buy a property without seeing it personally AND having it thoroughly inspected by someone of your own choosing. 

This is what I would do if starting out in real estate and wanted to buy my own home and start getting rental income and experience.

everyone else has already left great answers, I just want to add if you are purely a buy and hold investor: using bonus deprecation aggressively as early as possible is usually a great way to go. 

I would like to buy a duplex and try an airbnb and if that did not work would like to long term rent the property.  

. - What markets are good markets for investing/buying large multifamiliy apartment complexes?

You need to have a property under contract that meets a buyers criteria or you can start networking with investors and find out their buying criteria. 

@Michael PaywalaI am a multifamily investor located in Greenville SC.Always looking to buy more apartments.Maybe we can meet up when you are in Greenville sometime.Arn

The commercial returns available on loopnet or auction sites for public viewing generally seemed no better than I could’ve gotten buying overpriced residential property.  

Many who see “owe I can buy or invest as a note” will immediately assume it’s backed by real estateThat is not always the case.