But the enormous tax rates make the property appreciation harmful to landlords.

@Grant Boney There's always a chance you could get lucky so there's no harm in making him an offer.

Another company can also be the ¨second¨member say a limited partnership because I think there is stuff with the voting rights that makes that beneficial, but this would need to be tailored to each persons sisuation.An idea I have been told if you do good business you will not have to worry about a suit, but there is no harm in planning for a rainy day.

Flipping is not easy and a lot of mistakes can and likely will be made on your first, and even your 10th so placing your family's or friend's money at risk and losing some of it could do some major harm.

I don't think there's any harm in your tenant knowing that you're a realtor if anything they would know that you know the law and won't try funny business.

Mold is in all the air we breathe it is just if it gets to dangerous levels where it could harm us. 

Which can harm the landlord.

What is the harm in waiting?

I doubt he will try to pass hurtful things as it would harm him as well. 

Some are harmful,  some are not.