I will not comment as to the tax laws and underlying rules - that is a discussion you can have with your tax advisor who presumably you are paying to help you.What I will do is provide practical and business guidance on tracking time.Firstly, there are apps available that can assist with time tracking where you can specifically detail your time, who you met with, etc.

You have an STR listed on the Airbnb platform.Why not look at the design of highly sucessful STR'S in your area and copy some of the best ideas?

If you have multiple LLCs, best practice would be having a Plus subscription.  

Yes its a very bad idea.

As mentioned above, have good comps.Take a look at the S8 list of available properties so you have an idea of what your prospects are coming from.

I have several ideas.

A person who has spent his 2000 to 4000 minimum CPA practice hours doing foreign currency conversions at Deloitte for a Belgian energy company may not know the first thing about real estate or anything else.

And while seller financing is a very common practice in business acquisition, the good deals are not being done with high levels of it.Particularly with smaller deals, and especially with a business like a laundromat, there are cash buyers out there.

I love the idea and its really quite nice because the costs are minimal and upside is huge.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.