First, Last Security Renewal

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Hey everyone,

Just wanted to see how everyone else does this. If I have a rental just say 1000 a month, around figure with first, last and security upfront which is 3000. Rent goes up 25 a month. So would tenant need to pay upfront, next month the remaining 25 for last month and also 25 for security so next month rent would be 1075 or how do you do it?