As a former Federal employee, I understand what you are going through. There are some very nice neighborhoods inbetween Fort Worth and Dallas, and I'm sure we can find you the right house for your family.
However, it is way too early to start looking at rental properties. The ones on the market today will all be gone by the time you arrive. Rents are high in this area, and it is cheaper to buy a house. If you can qualify for a loan, you should really consider purchasing a house for your family, instead of throwing rent money out the window. If you should need some help bringing your credit score up, I am a Certified Instructor in Credit Repair. I will show you how to do that for no fee.
Contact me directly and once I know what your requirements are, I can send you samples of properties that are on the market so you can see what it will cost you to rent the kind of house you want in this area. I can also help you save money on your electric bill when you get ready to hook up your utilities. Good luck on your packing and moving!
Happy New Year!
ULTRA Real Estate Services