Do you really require the first, last month's rent + the deposit?

[Blake Jones]

I'm a new landlord. I have a 3 br/2 bath rental that'll go for about $900 per month. I'm wanting to know from more experienced landlords/managers do you require people to give first and last month's rent plus deposit. That seems like a lot for people to come up with. How do experienced landlords and property managers handle this? Do you require all three and if so do you let them make payments on some of it or do that have to pay all 3 at once (in my case $2,700) prior to moving in. Thank you!