I posted the listing on December 12, and my first tenant moved in on December 26th.As I’m filing my (extended) 2023 taxes, I’d appreciate any advice on what expenses I can deduct and what I should capitalize, especially since the property was mostly vacant.

They aren't throwing it within my fenced area but my property line extends to outside the fence as well.

Can you extend the loan term if needed?

In a stagnant market, you might need to hold for an extended time for the value to increase enough, and the pref might mature before you can get there.  

Lenders generally rely on formulas when arriving at the loan amount they are willing to extend to you, the borrower.

Thus you have spreads increasing (widening) even as rates are moving down.As I'm sure you're aware, the 10Y treasury somewhat tracks the 30Y fixed rate mortgage rates because the average duration of those assets has always been around 7 years (i.e., very close to 10). 

To make the deal happen I had extended a small second lien note to him so he could repair the property enough to get bank financing.  

The fastest and cheapest cost segregation is through DIY software, but it has significant drawbacks:  https://www.biggerpockets.com/forums/51/topics/1136752-expla...Some areas (like mine) have extended deadline beyond Oct 15th.

One of Pace's core teachings lies in the spirit of giving more than you take—a principle embraced by countless students, who readily extend a helping hand to those still seeking their first breakthrough.

Washington continued with land acquisition and development through most of his life, with two exceptions, both of eight year duration.