Pizza and Puzzles

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Across
  1. 3. 7th floor house name
  2. 9. 8th floor RA
  3. 10. 6th floor house name
  4. 13. 5th floor house name
  5. 14. 6th floor RA
  6. 15. 1st floor house name
  7. 17. The custodian's name who starts with "M"
  8. 19. 5th floor RA
  9. 20. 4th floor house name
Down
  1. 1. 2nd floor RA
  2. 2. 3rd floor house name
  3. 4. 2nd floor house name
  4. 5. 8th floor house name
  5. 6. The custodian's name who starts with "L"
  6. 7. 4th floor RA
  7. 8. 9th floor RA
  8. 11. 7th floor RA
  9. 12. 1st floor RA
  10. 16. 3rd floor RA
  11. 18. 9th floor house name