Hi Josiah, First, what a great market you are in! I just heard the news about future NASA plans in Huntsville. Congrats!
Regarding evictions, you should issue a Notice of Default and 7-Day Opportunity to Cure notice on the first day the tenant is in default. Depending on the wording of your lease, that is usually the first day on which a late charge is due. The exact wording of your lease on this point could be very important.
In Alabama, you cannot file an eviction lawsuit until you have issued the 7-day letter and the tenant does not cure in time. The longer you wait to send the letter, the longer you are delaying your ability to file an eviction. You don't have to file, but at least you can, if you decide to evict.
In a typical lease, the rent is due on the 1st and late on the 6th. Your notice letter would go out on the 6th. That is counted as Day "0". The 7th of the month would be Day "1." The tenant can get current, plus late charges, all the way until Day 7, which would be 13th of the month in my example. You can file your eviction lawsuit on the 14th, unless the 13th is a weekend or holiday. In that case, the first business day afterwards is counted as Day 7.
Just because you are allowed to file an eviction lawsuit that quickly, doesn't mean you need to do it on Day 8 after the notice letter. I like to send out a Notice of Termination letter on Day 8. It tells the tenant I am serious. It is usually a "Call to Action" and causes the tenant to call me. Ideally, that is what I want.
You can continue to talk to them during that time period, and discuss payment arrangements, but make it clear the clock is ticking down. If you agree to give them extra time--say, until the 18th--then you and the tenant should sign a Forbearance Agreement. It can be as simple as a letter both of you sign. It would say the tenant acknowledges it is in default, you have given them additional time cure this one time, but if they don't get completely current by the agreed date, then you may start eviction proceedings immediately. You do this because you want the tenant to understand you don't have to give a NEW 7-day letter if they don't pay by the agreed date. But, unless you put this in writing and both of you sign, a judge might make you start your notice all over again.
Also, most landlords get some sort of payment in connection with the Forbearance Agreement. The agreement should acknowledge that partial payment, and also say the landlord is not accepting that as payment in full, it does not cure the default, and the landlord is under no obligation to accept partial payments in the future.
If a tenant does not cure within the time period, but then you agree to let them get caught up later, think about requiring the tenant to sign a new lease as a condition of not evicting them. The new lease might be more restrictive than the old one. It might make the rent due on the 1st and delinquent on the 2nd. The rent might be slightly higher because the tenant is a risker tenant. You might require a guarantor. Whatever you can get to make yourself feel safer in your future rent payments.
If you will consistently issue 7-day default letters for all of your tenants when they are late, you will see timely rent payments improve. Some tenants will become offended if they are late one month and receive the default letter. You should explain that you recently learned you must do this consistently whenever a tenant is technically in default, otherwise you might be vulnerable to Fair Housing complaints. That is actually true. If only some tenants receive default letters, then you run the risk of some tenant claiming you treated them more harshly because of their race, familial status, disability, etc.
Good luck! Let me know if you have other questions.