Pure DST vs. DST-721 UPREITs

[Lan Bak]

Looking to get out of the active landlord business and exploring pure DST vs. 721 Exchange.

From my limited reading, a DST-721 Exchange seems to be a better option except it is a one-way door (no exchange back to DST or 1031).

Looking for some inputs, comments and gotchas in evaluating both options.

Comments on upfront and ongoing fees are especially welcome :)

Thanks in advance !