Can FL landlord ask for potential's past W2?

[Huiping S.]

We have an applicant who has no issue on background and he is a law school student and is working also. His 90% debit is student loan. The amount is huge! He stated some income but self-employed, court ordered money, and some money from law school (I guess that is the student loan be distributed through school). Our biggest concern now is his income although he said he likes to give us his pay stabs. As self-employed contract, the payment is not stable. Can we ask past years W2s based on FL law? How often a law person will play the law games with landlord? Thanks experienced landlord to give a help. Huiping