What are the disadvantages of buying a 2-story duplex? 

Are there disadvantages to creating a new lease for renewing tenants? 

With so little inventory and bid wars , and hundreds of showings of each property to some fake buyer who never intends to buy house, I don't think Erics in this game are in any particular disadvantage compared to "licensed" REAs (licensed is in quotation marks,  since a lot of people seem to put too much significance into obtaining it, as if it was a law degree from Ivy League school).

If so what are the advantages and disadvantages?

However, it's important to remember this trend started in the not too distant past, and for a very long time before that the norm was separate rooms, so it's not surprising that there are actually considerable disadvantages of open floorplans and advantages of more traditional ones.Opening the kitchen to the rest of the house has to be one of the worst aspects of this trend.

Hey @Adriana McLaughlin - This is actually the FIRST TIME I have heard of the term "ALL-IN-ONE-FIRST-LIEN", but after doing a little bit of reading on it I am not sure I still completely understand.Basically, you apply for a HELOC credit payoff your existing mortgage with this variable HELOC and then in theory have some leftover as well...so the advantage is paying off your loan early and getting access to a line of credit, but the disadvantage would be a variable rate mortgage for the reminder due on your orginal first mortgage? 

Is it a disadvantage to have shared space?

OOS investing is much harder than it looks and picking a random city that you don't know much about will put you at a disadvantage. 2) Network with several local investors in the city you're considering investing in.

There are advantages and disadvantages to house-hacking which you will discover as you go.

All deals have their own unique structure and you should understand the advantage and disadvantage to taking distributions along the way vs. a higher payout of profits at the end.