Hello Destiny
I tested your project.
To obtain the data concerning a tenant by clicking his name in the grid, I removed the modify button which is duplicated with the Display button. So I renamed this last Display / Modify since both call the same form (Add).
Programming is a lazy thing, plus it lightens the code!
So it works for me: by clicking on a tenant in the grid, I can display all of its data.
Another improvement: in the Add form, when entering the black panel, take the opportunity to update the total cost (Rent, fees, Down payment) directly from this form. This will correct any bad entries.
Come back to us if needed
JB