However a fist time homebuyer is defined by most lending programs as someone who has not owned a primary residence in the last 3 years. If you have lived in a home you own in AZ for the past 10 years, that would make you ineligible per that definition. But I am not familiar with this loan you are talking about, if it is a specific one, so if it is a specific program they may have different requirements/definition of a first time homebuyer.
Would be buying this home as your primary residence to live in? Do you have employment in the Rio Vista area?