Congratulations on your first investment, excited to hear more about your success. 

Here's a blog I wrote about H.S.A.s invested in alternative assets Financial Independence Retire Early - Achieve FIRE Faster with a Self-Directed HSA- https://udirectira.com/achieve-fire-faster-with-a-self-direc...

Although I don’t have experience in house flipping yet, I’ve successfully run a construction business back home.Due to the war, my family and I had to search for a new place to live.

The requirements are often difficult, if not impossible to achieve in conjunction with other site requirements such as the setbacks and required outdoor area.

Does scale achieve that? 

If you did finance some of the purchase using a non-recourse loan, then you need to read up on UBTI/UDFI and there are some taxation benefits that the IRA can achieve since it now owes taxes in that scenario.

These are the critical tests you will need to achieve and support with a detailed time log.

You can achieve or even exceed your current cash flow in markets that are more landlord-friendly than Boston.

I am bumping into more and more people that I consider fairly high achievers that seem to have someone coaching them to do better as well.

BP Rookie podcast has a pretty good content on Airbnb, however mostly success stories.