FSBO/ First time home buyer

[Keyjonn Velaz]

Hello, the Bigger Pocket crew. I am new to the group and have a question / require advice. I have been exchanging conversations with an owner of a Texas property. Home only 2 to 3 years old in a nice area. He is looking to sell, or he will be getting a realtor next week. However, he requested 100k down, and the remaining mortgage is 269,000.  I understand this is way too much, 100k down. He replied send me an offer, and I will review it. Requiring advice on what the offer should look like reasonably?