The only disadvantage would be that you would most likely not be able to get financing for this property, but if you have the cash to invest, it should work out very well for you. 

The disadvantage is that the indoor units are a bit large but if you place them nicely they'll blend in to any room.Another advantage is the upfront costs are much less than a traditional AC system.

You are already at a disadvantage because there are quite a few buyers who want to purchase directly from an owner rather than engage with a wholesaler.

So, for any of these people to complain about America wanting to help disadvantaged citizens because it is 'taking away from other citizens through taxes' is delusional and ignorant.And the thought that comes to mind is how MLK Jr's 'Letter from Birmingham Jail' still rings true:"First, I must confess that over the last few years I have been gravely disappointed with the white moderate.""

Their advantages, disadvantages, etc. if it is possible to invest close, maybe not in California, that would be a good idea so you can save and get experience with investing/management.

Trying to compete against a builder to sell your existing build is extremely difficult.If there is new construction similar to yours around what you're selling you'll be at a disadvantage unless the market is scorching hot again and the builders have waitlists like they did in the recent past.Let me know if you have any other questions or need help in those areas.

I'm interested in learning more about the dis/advantages between buying it as a foreigner and buying it directly as someone who earns a US income.

Can obviously mitigate access to the property by disabling the code if using a smart lock, but other than that, are there any advantages/disadvantages that you've seen?

What are the advantages/disadvantages of a condo in Miami Beach/Brickell/Downtown?

Not having cash on hand to make deals quickly puts me at a disadvantage.