Can I get the seller to pay closing for usda?
Seller can pay all the closing costs. USDA Rural Development sets no limit on the sellers contributions to closing costs

First time home buyer Looking to get a home loan with 10% down, is that possible?
Absolutely! Being that you are a first time buyer there is the potential to put as little as 3% down. Needing to have 10 or even 20% down is a myth!