I am not sure whether the price is justified or not. No one on this forum has had the ability to review your credit report.
The Pettit Law Firm (www.txclf.com) is local to you. All work done by Texans [not sent overseas]. We are more than happy to sit down in person or over the phone review your credit report and see what can be done and then what is reasonable to pass FHA, VA, USDA current criteria.
If nothing else we maybe able to provide a different perspective on your credit situation. So no matter what you choose, you feel like you made the best decision with the information gathered.