Hey @Martina Su, do a search as there are several threads with tons of info.The bottom line is that there are restrictions all over the place so you should get a good realtor locally who knows the areas and market to guide you.

I have off market investment property inventory here in Florida.

So then the house is 10% owned by The Person, and 90% owned by The LLC (income and expenses shared accordingly).Now this year say I want to take the same percentage (10%) - and say it's a flat market and the house is still appraised at $500,000.  

You cannot use "short term rental income" to qualify on the subject property BUT you can use 75% of the appraiser's rent valuation on the 1007 market rent schedule.

The American market isn't strictly RE driven. 

Really important to do the market research, check for liens, and get eyes on it before waving that paddle at an auction. 

I suggest talking with @Connor Gillen who has a strong grasp of the market up there

We spent four years in a duplex, maintaining it in our rental portfolio as we transitioned to another house hack residence with an additional accessory dwelling unit-type house next door.Navigating the intricacies of FHA loans in competitive real estate markets can be daunting, given stringent home requirements and more complex processes.

In the Phoenix, AZ market Ceiling Fans are very popular and definitely increase the desirability of a property.

The value adds and the market appreciation profits pale the cash flow (this is even with a duplex that cash flows over $5K/month).