There is nothing wrong with that method, until you want to change the paint color and then have bleed from the paint into the grout, which as you know is more difficult to remove - many people would not worry about such things.Methods to remove the existing grout have been stated already (and yes, you might be able to cover it up with a trim piece).

The BRRRR method doesn't get your cash back.

There is a method that works I will explain in the end. 4.

Edit to add: if you already have several concurrent projects, have your accountant also give you a monthly job sheet and move to a basis of completion or accrual method of accounting directly... do not screw around with a cash basis as it will bite you early on!

As a first time buyer, it's natural to get emotional about the purchase, no matter how hard you tell yourself not to.

Whatever type of water heater the building has, (natural gas, electric, propane, should have another common area meter that powers all the things that are shared. 

It seem like the llc method is better for US residents/ citizens.

You intend to do something beneficial in nature in the future with it.And you have extra cash laying around and other investments on point.

There is a proper way to transfer funds and you should consult your CPA on the proper method.

So go forth with The "Unicorn" Method (it's really called a vendor take back).