 One standard tool invented to create affordably priced homes for local workers that would stay affordable for future generations was a deed restriction, which in its most simple form states that to qualify for purchasing a home the applicant must live in the community, not own another home in the community, must work essentially full-time and must have lived in the community for a minimum period of time.Also, the owner can only sell the home to someone that meets the same criteria.Later provisions added over the years of "trial and error" include income restrictions to qualify, and capped rates on the amount of profit an owner is allowed to make in order to guarantees that the home will remain affordable forever.