When transferring funds from Hungary to the U.S.

.: Quote from @Rachel Mazzanti: It sounds like you’re taking a smart approach by looking for a reliable tax professional.

Partnering with a strong team—such as a knowledgeable realtor, property manager, and reliable contractors—will also be key to your success.

Are there any reliable software that you guys use for this? 

I’d recommend starting with resources like Short-Term Rental, Long-Term Wealth by Avery Carl and real estate podcasts like BiggerPockets, connecting with investors in vacation rental groups, and researching reliable management companies in your target areas to make the process as hands-off as possible.

From your advice I want to delay going into a REIT.1031 --> DST --> REIT Once I'm in a REIT I can no longer transfer w/o paying taxes.1031 --> DST --> DST2 --> DST3......

Also, your enviro. company will delineate wetlands for you and transfer the info to your civil eng.

It's as Buffest warned, the greatest transfer of wealth in human history in action. 

I can have separate bank accounts, debit cards, security deposit accounts etc. and now with new features like automatic recurring transfers things are even easier and time efficient 

Additionally, you could not move your Roth IRA funds into a Solo(k) because for some reason unknown to even the Department of Treasury (I asked them) Roth IRAs cannot transfer into the Roth bucket of a Solo 401(k).