We currently run a real estate portfolio that includes 3 Airbnbs and 2 long term rentals. We are planning to purchase a foursome to a charity golf tournament and give away a weekend at one of our mountain Airbnbs as a part of a charity silent auction. Are there any tax benefits we should be aware of when considering how we structure the donation? I’ve read that we should structure it as a sponsorship so we can write off as a marketing expense. Any tips?