Making an existing tenant reapply

[Rick Bassett]

All, We have a property that we want to increase the rent by $100-$150/mo when it comes up as its under market. The current tenant has been in there for 3 years and is always right at the last day of the grace period with her payment, she struggles to make the current payment of $1750 and is probably at her max. I know she will say she wants to stay and will agree to an increase but I doubt she can afford it. I'd like to treat her like a prospective tenant and require a new application to have a better look at her finances. Is it reasonable to have her reapply for a place that she is already living in? Rick