It's probably not what you want to hear, but you are late to the party. Real estate drone work has been a race to the bottom from the beginning. Listing real estate agents are notoriously stingy and unwilling to spend their own money on drone...
This is interesting.
Despite having read the RTH information in several manuals several times over the past few years, I hadn't fully appreciated that the drone's Low Battery RTH action on low battery supersedes the hover action in the Fly App's...
Check out the user manual for the OP's Mini 2 at page 14... or maybe page 47 from a newer Mavic 3 Pro or page 44 from the Air 3S. Look up the chapter Low Battery RTH.
From what I've seen over the years, all Mini, Air & Mavic iterations have it...