First Time Lending Options & Handling Closing Costs - Long Island

[Alexander George]

My wife and I are looking to purchase our first duplex / house hack in Patchogue, NY. 

I found a local lender who offered a pretty interesting product (at least from the standard stuff I've seen)

First Time Home Owners

Only 5% Down

NO PMI

3.75% Interest

Income Limits Waived for the Area we are Looking

Property we are looking at is asking $399k but we believe $350 is much more fair. We are willing to meet somewhere in between. The lender told me for about a sal price of $360k, expect closing costs to be around $17k.

Does anyone know about typical closing costs in the Suffolk Long Island area? I feel like that is a little high for a small duplex, at $360k. Am I totally mistaken?