Pay a year in advance. We rented to a new PM hire at a fund (commercial/office space) and when he told me what he did he followed up with a check for the year.
I've had the same experience. The guy was a young pro poker player. He paid me 6 months in advance cash. And that was for a penthouse I was renting, so the rent was kind of high$$$.
You first show them your bank statement. If they don't believe that, you show them your pay stub or brokerage statement if you're a full time trader. And if they still don't believe you, then you sue them for discrimination or find another place to rent. Just in case you don't already get it, when a landlord asks for the impossible, it means they don't want you on their property. Don't be so obtuse.
Be like one of those Youtube influencers. Drive up to their office in a rented lambo and have a fake giant stack of $100 bills (with an actual $100 bill on top that's visible).
%% IN some cases they are more retarded; those that want a credit score, as if debt is a money management score However, that could also be reasonable; because if someone[not you] but someone deals drugs, they[cops+ such] can seize the property. Offer to pay a year in advance sounds good: +property ownership where possible.
Old saying, Money talks, bullshit walks. Start at 6 months, if the Landlord doesn't like that, give him security for a year (but it has to go to an escrow account. Insist on the name of the law firm it where the funds are escrowed You will be in at any rental you choose.