You want an accountant who can help you strategize and who is responsive when you want to know the consequences of the financial decisions you are making throughout the year.Good luck.

I am collecting all this data in order to ask for an investigation so it can be determined by the authorities if there are any leal consequences.

I'd just notify the tenant in writing what that means and what the consequences are. 

Also, the tax benefits of the buy and holds help offset the increased tax consequences of fix and flips.

You want an accountant who can help you strategize and who is responsive when you want to know the consequences of the financial decisions you are making throughout the year.Good luck.

Finally, The rent control discourages further development, limiting supply which results in higher rents.So rents go up, but the rent control advocates are too uneducated on the economics of the rent control policy to see their role in the rent increase.Another consequence of rent control is no value in keeping the property as nice.

@James Carlson You probably already know my thoughts on STRs vis a vis 'affordable housing' :-)But this is going to play out as it will, and ultimately even Gov't intervention/restriction will fall to the power of the free market, so we'll see how it goes.I wish the property owners and entrepreneurs well, although some of them will learn that 'elections have consequences' as 44 so famously said.

Switching the utilities into their name without safeguards in place—knowing the tenant might act out—seems like a misstep on their part.While it’s true you’ll ultimately have to cover the cost, it doesn’t feel entirely fair for you to shoulder the consequence of their decision.

If you moved it to an LLC that both of you own it will be a partnership and that has its own consequences and costs. 

However, I always have to ask myself what decision do I make today if I am evaluating the consequences 2-5 years from now.