The pros and cons of the lease option that you have written about is that there is no guarantee that you will close escrow with the tenant buyers (con). I suggest that you set a time period for the lease option to be accepted in writing.It is best if you have a real estate attorney assist you in your matter.The pros are that you will not have to pay real estate commissions if the sale goes through, you have a possible buyer in place to buy the unit while you are out of the country and as such, the chances of having a tenant damage the property is lessened.