I’m in the San Diego area and my husband and I are adding 2 additional rental units to our property. 

An experienced agent will list your property with the language, "no showings until an accepted offer", to avoid violating your tenant's rights to the peaceful enjoyment of their home - possibly resulting in their lack of cooperations and a lawsuit against you.

two things I have learned.  1,200 is a sweet spot for demand, and if you do have a large unit of 2,500 get a couple of them zoned for auto. 

This simply means you have language in your lease that states the landlord is responsible for paying utilities up to a certain $ amount (let's say $100 for the sake of argument).

The answer is NO, based on the language of Section 152(c)(3)(A):...an individual meets the requirements of this paragraph if...

@Tyler Kesling  Adding to the above great points, start with 2-4 units as it's standard conventional financing.  5+ units is commercial and somewhat of a different ballgame.   

Greetings BP community, I recently joined a national senior care living development team. I'm coming from smaller scale mixed use development and fundraising. I'm data driven and would love to immerse myself in IL, ...

They just need to include that language as part of the process.

It's a good practice to provide notice in writing, and to indicate the time that you left the unit when you are finished.

If I was approaching this I'd want chatbot that used the ChatGPT language model but was closed off from the internet and only trained on my data.