I live in a mobile home, rent the lot on which it stands, and pay property tax on the structure. Can I claim both rent and property tax?

We can't answer to this kink of question, sorry.

You will need to contact CRA and ask to a fiscal analyst what you need to provide on your return fir this mobile home.

Click on this link to have their phone number:

http://www.cra-arc.gc.ca/cntct/menu-eng.html