Final answer:
Clarissa should use IRS Form 1040 Schedule E to report income and expenses for her rental properties. This form is specifically for reporting income from rental real estate and other similar types of property without additional services provided by the landlord.
Step-by-step explanation:
Clarissa, as a landlord managing and maintaining her own rental properties without providing additional services to her tenants, should report her rental income and expenses using IRS Form 1040 Schedule E. This form is designed for reporting income from rental real estate, royalties, partnerships, S corporations, estates, trusts, and residual interests in REMICs.
It requires details about the type and location of the rental property, rental income received, various types of expenses incurred, and the depreciation of the property if applicable.