How do I enter landowner of a mobile home rental if it is a company, with their address and name with Michigan State Taxes?

The company or person you pay your rent to.  It is the person or the company listed on your rental lease or contract.  You can claim a property tax credit if all the following apply:

• You are considered a "natural person" (owner or claimant), and not a living trust or other legal entity, such as a S corporation or LLC.
• Your homestead is in Michigan (whether you rent or own).
• You were a Michigan Resident for at least 6 months of the year you are filing in.
• You have Total Household Resources (THR) under a specified amount adjusted annually.
• You own and occupy the homestead you are claiming for credit or you occupy your rental under a contract lease agreement.
• For homeowners, the taxable value listed on your property tax statements must be under a specified amount adjusted annually. The taxable value cap does not apply to renters.   

See - Michigan Property Tax / Homestead Credit