Phone is company owned so I don’t pay it and I live in the suburbs so not having a car makes it incredibly expensive to take a taxi to get into town for work.

If you'll have no connection to the area after you leave, it does not make much sense to hold on to it and lose money indefinitely.

Hold them indefinitely for cashflow?

If I was going to buy a condo I would only buy if there’s equity in the deal otherwise for market prices a house will give you a lot more control and you can rent it out indefinitely.

Then you will defer all the tax completely and indefinitely.

If you are contacted by anyone in the future you simply say that there was nothing left behind, perhaps the room mate took it all.You can not take responsibility indefinitely.

Perhaps a C Corp to hold the US rental real estate makes sense if your wife (the US citizen) intends to stay abroad indefinitely. 

The plan would be to then cash out refi and repeat (BRRR) indefinitely without needing much, if any, of my own cash.

However, where there is an expiration of QOZ status, the proposed regulations limits the benefit of the rule to elections related to dispositions occurring by 12/31/2047 (which is 20.5 years after the last day of being able to make a QOZ investment – 6/30/2027).As currently written, the last day that a sale producing deferred gain which can be invested in a QOF is 12/31/2026 (after that date, there is no election allowed) and designations will terminate after 2028, it is likely that all QO Funds should be viewed as not being indefinite in their term but will need to be sold or exchanged in a taxable transaction by 12/31/2047.

It has to have solid returns and financials.   5+ units you'll need to go commercial or private money either way.If you really don't want to sink your money indefinitely, you need to use the BRRRR strategy which involves getting a fixer upper and making your own equity through repairs.