First take a deep breath relax and use the internet to do most of the work. First start here http://www.gosection8.com
select your state,city,county etc and begin your search. Second most landlords only have a bad perception of section 8 and doesn't realize the benefits. In this unstable economy section 8 is a guaranteed way to get the largest portion of the rent paid consistently and on time, in other words you must inform prospective Landlords on the benefits of renting to section 8 explain to them that you have more to lose in the situation then they do explain that if you don't follow the rules you risk losing your benefits which would leave you and your family homeless, highlight your positive rental history if none exist highlight the lessons you have learned from not being a good tenant in essence you must reassure the landlord that you will only care for the property and not destroy it. Do not take a entire crew with you to view a place to stay leave kids with a sitter only adults that will be on the lease needs to come . Treat it the same way you would treat a interview be prepared look sharp be enthusiastic and ask informed questions make sure you understand all that is required by the landlord make sure there is good chemistry in the beginning if something puts you off in the beginning such as landlord evades questions (ignore) this may be a red flag that the relationship will fall apart if you rent from this landlord. I know you are on a time limit but make the right choice you can also ask for an extension from your caseworker. To summarize rentals are out there you just have to present yourself as the best candidate.
may GOD bless you.