Lacerte has an expectation of numbers only - No UNIT - No APT - No SPACE - No nuthin' except the numbers. That is why it says Apartment Number

I did run a test in 202, just for fun and found the the 540 picks up the 1st 2 letters of the WORD and then the numbers. The 1040 picks up all the letters and then the numbers.

This may be a recent improvement.  I found this old thread https://proconnect.intuit.com/community/lacerte-tax-discussions/discussion/why-does-apt-not-appear/0...