seller taking control

[Everett Marshall]

I found a property with a duplex and a 1/1. Needs 20,000 in repairs and ARV is 93000. There is a renter in one side who is paying 600 a month. The owner agreed to sell for 52,000 and he would pay the back taxes. So i fax him my usual assignable contract. I usually do $20 earnest money he called and wants me to pay 200 in earnest money. Should I allow him to dictate how much earnest money I give?