Not brainiac stuff here, but in the end, it's the simple-but-tedious work that gets the best results. 

You may get better results by searching from Google or another search engine.

As a result, you don't need a W-9 for yourself, you're a Partner, and you don't need to issue a 1099.

It sounds like this is a primary residence purchase if it is for your family, so that would result in a different answer than an investment property.

look at other STR data in the area and do similar style to do your best to recreate similar results 

We always use the same 2-3 colors so we can easily match them.

Why are you using rules of thumb and not using the results of the thorough inspection by a great inspector that you are surely using and would be an idiot not to base your numbers on? 

It works like this:(1) Save up enough money for a down payment(2) Buy a single family home that you will Airbnb/VRBO(3) Ensure the “average period of customer use” is <=7 days(4) Materially participate (5) Cost segregate the property, resulting in large depreciation deductions(6) Use the losses from step 5 to offset your W2 incomeWhat makes this possible is that operating an STR is considered “non-passive.”

Keep in mind that condos are typically a more affordable housing option, resulting in more long-term residents.

This is a result of STRs being regulated in Dallas.