Then I would advise getting an Architect (or Engineer) to review the write-up and advise on how to properly satisfy the City/Town and remove the condemned status.

suggestions.Maybe re-verify their employment status using the numbers they gave you as well as employers they may have provided or were listed in their credit report(s) (not always up to date, but another place to check).

The San Diego market is extremely competitive and this is the status quo right now.

I plan to rent it STR as soon as I’m finished with the above in order to maintain investment property status. 

The 90 day time period begins when permanent resident status is issued and not when an individual receives their permanent resident card.If you need to apply for the International Student and Foreign National Working in Ontario rebates, the final deadline to submit an application is the earlier of March 31, 2025, or within 4 years after the NRST became payable.

I imagine being able to do so virtually would be the most cost-effective, especially if it's possible to determine load bearing status by video inspection of the attic.I'm in the east San Diego area.Please let me know if you have any questions about specifics.Thank you!

The property will be appraised and its value used to divide the marital assets. 

Also, if you're flipping these run down properties, google "dealer status".For your attorney search, if you google asset protection attorney new york, you may find additional attorneys that could structure your entities.

IMHO, it doesn't.See some of the older threads debating this topic:https://www.biggerpockets.com/forums/51/topics/941623-real-estate-professional-status-vs-real-estate-as-a-businesshttps://www.biggerpockets.com/forums/51/topics/784349-any-high-performing-realtors-taxed-as-s-corpshttps://www.biggerpockets.com/forums/51-tax-legal-issues-contracts-self-directed-ira/topics/713607-s-corp-for-real-estate-agent

The previous replies cover many of the details required to consider a property (such as separate meters for elect/water; status of current tenants), but I also spent a lot of time in MLS to assess other duplex sales in the same zip code, rental price history for the zip code, which gave me the confidence that I would be cash flow + from the first month (we put 25% down to get the most favorable interest rate, which also ensured we were cash flow +).