Hey @Cole Durbano,
Congrats on the job offer and the big move coming up. As far as the home loan goes, there are a lot of factors that go into it. Typically an FHA loan requires at least 3.5% down. This is usually your best bet for a low downpayment, assuming you weren't military, and don't have a VA loan. That being said, there are often first-time homebuyer programs offered by states or by specific banks/lenders. There can sometimes wrap the downpayment into the rest of the loan, or into a second loan.
There are also other loans to look at, like the USDA loan. This loan gives 100% financing but is restricted to specific areas (urban) and has an income restriction as well. I would recommend reaching out to a lender in the Dallas area and asking what your options are.
As far as fees go, usually, sellers pay the commissions to the real estate agents, and you as a buyer don't need to worry about that. That being said, there are still closing costs that will need to be paid for. I think 3-5% is a fair estimate to have for closing costs, especially in this market. I wish I could give you an exact number, but these costs vary on every transaction.