Data Validation With OFFSET

I'm trying to use three nested Do..While loops to find data in a worksheet and consolodate it in a table. Individually the loops work, however when I nest them only the innermost loop works. The inner loop is written to exit when the Find value is Empty and the other two exit when firstaddress = latest address so they will only cycle through their range once.

Problem is when nested, the middle loop FindNext is Empty and exits on the first go, and the outer loop FindNext looks for the value of the cell above the first found cell, rather than what it should be looking for, and so creates an infinate loop. I thought this might be a problem with the ranges being redefined in each loop but respecifiing the range at every Find/FindNext hasn't solved it.