@Steve Vaughan and @Nathan Gesner Thanks for your advice, this is good I think I have a clearer picture of what to ask of them now.
Nathan I'm a little worried about leaving it empty for a month too but its been on the market for over a month now and this is the first person who applied that didn't immediately say they found something else once we started running their application. Possibly a discussion for another thread but this is my first rental property. I think a few mistakes were made by me and my partner. I think we over-judged the area based on streets not too far away but still over-judged the street the house is on. Its not a slum by any means but we are definitely pushing the rent for the area. It's also a 2-bed but its a big 2-bed (1100 sqft, which is this area is usually a 3-bed) and I think to get top dollar based on the square footage rather than the number of bedrooms it takes a certain tenant.
In any case I have had almost no quality applicants and plenty of people show up and don't apply (I think my qualifications list on the application scares a lot of people away but its pretty standard). The only quality applicant found another place a day after handing in her application and one or two others who I would like to have applied ended up finding other places. Other people who have applied have credit scores in the 400's multiple accounts in collections/delinquent, felony, multiple pets, etc. At this point this applicant has been super timely when she has setup somewhere to meet, meets the requirements, has been working in the area for years, no pets, etc. Given my luck so far I do not want to hold out that someone will have better qualifications maybe want to move in May 1st (less than a week away) or the 15th. This will also give me the chance to try and get most of the work done to the other side of the duplex without disturbing a tenant.