Good luck to you...
Your credit score is good and it is wonderful that you have been at your job for 14 years. Your mortagage/insurance/taxes/and interest for a $300k loan will be approximately $2100/month. You can qualify for a FHA loan. However, your total debt(including your mortagage) to income ratio should be about 45%. For you this number is $20,250. Your mortagage alone will be $25,200/year. You could reduce your loan amount if you can come up with a large down payment.
I suggust you talk to Dave Gaylord(lender/broker) he will guide you as to how you can prepare yourself to be able to get a loan. FHA guidelines are easier to work with. Dave number is 949-939-6011.
Prudential California Realty