this is a great question!
If you buy a home in Valencia county, you can take advantage of USDA financing, which would allow you to buy with no down payment, only closing costs. Of course, you have to qualify with a lender to borrow money for the purchase.
Closing costs will vary depending on interest rate, your credit score, and the purchase price, but generally speaking, you need to be prepared to have $2500-$3500 available to pay for your closing costs.
It's also possible to negotiate for a seller to pay a large portion of those costs. I can help you accomplish this.
Call or write me back for more details on how to get stated. I've helped many people move from renting to home ownership. It takes some work, but it's worth it!