If it is an older home with stone foundation and brick/block walls likely you will need to underpin the foundation while lifting the home and then star bolting any active bulging. 

Are there any other events that could occur which according to a lender would constitute the start of the seasoning period?

Quote from @Ben Trageser: If you live in your short-term rental (STR) property in a future year after claiming depreciation, depreciation recapture does not occur immediately.

This occurred in January just before an eviction was complete. 

This occurs with mortgage financing, margin trading in stocks and other forms of leverage. 

Quote from @Ashish Acharya: @Niklas Zhu If you tear down your STR in 2025 and convert it to personal use, depreciation recapture does not occur at the time of conversion.

Hmmm, such a thing has never even occurred to me.

.- Individual 1031 Exchanges: Each partner can then independently conduct a 1031 exchange with their share, deferring capital gains taxes by reinvesting in like-kind properties.Considerations:- Timing: The IRS may scrutinize transactions where the "drop" (distribution) and "swap" (exchange) occur in quick succession.

I say to look at these hard because these items can occur for a period of 12 months possibly without major issues of seeing large cracks or settling if a lot of water hasn't been present in large volumes.

It would never occur to me to disclose theoretical discussions about a project that have not been passed by the board.