Dr. Peter Mark is a medical doctor. He works for his own medical clinic in Sydney. Overall, Dr. Peter has incurred the following costs. Advise him as to whether he can claim deductions on the following expenses.

1. Donation of $400 to the building fund of a local public library
2. Payment of $600 membership fees to the Medical Doctors Association.
3. Payment of $2000 for repainting the front of his medical clinic with a new type of higher quality paint to make it more attractive to walk-in patients.
4. Payment of 1200 for a Registered Tax Accountant to manage his tax affairs.