If you are looking to start your rent in August, consider starting your search by the end of June. Have in mind that summer time is "high season" for rentals. It would be a good idea to have your financial information and paperwork ready by that time. Many landlords require the following: income 40x the rent, an employment letter, in case you need a guarantor with an income 80x/100x the rent, good credit record, most recent W2 form, first 2 pages of most recent tax return and most recent bank statement.
I've worked with out of town clients before, so in case you decide to work with a real estate agent, feel free to contact me.
Good luck with your home search!
Licensed Real Estate Salesperson