Using your example of $100K net, assuming that you are sole proprietor you can contribute about $36K.You can't defer gains via 1031 exchange on a flip so the rest of the funds will be taxed, unless you find another way to minimize your tax liability such as donating to a charity...

I have gotten GREAT deals; A lot of the materials are donated by the big box stores.

Even if I were as successful as Robert Kiyosaki and then donated all my profits away to children's hospitals, I would still be a "slumlord" to them. 

I know most of our top 25 posters or so, and these people have all benefited from our site in one way or another.Finally, as for putting your money where your mouth is, Tim has certainly done that with his generous $250 donation.

When I change addresses, I'll weigh the cost of moving these items or donating them to charity and buying replacement items at my new destination.Probably the most important amenities, however, are quiet neighbors and a safe neighborhood. 

The reason being, among other factors, there are now homes to buy, and you wont have to donate your left kidney to get an offer accepted! 

The boarding home was a place for me to donate things too when I would go over to collect rents.

In other words, if you have a house you plan to tear-down, you can *donate* the house to them.

@Brandon Hall, thank you for mentioning the possibility of donating the property to the fire department.

My father and uncle plan to donate the property to the temple my uncle belonged to because they believe that is what he wanted.