Yes, some owners will offer that to renters/buyers however it usually depends on how healthy or unhealthy a market is. For instance if the condo market in the part of Concord you are referring is strong the seller would likely rather sell their property than take the risk of carrying it. However if the market is soft you will have a stronger pitch to rent-to-own (all of which a good buyer broker can help you negotiate)
Hope that helps!
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