The role of the landlord in the voucher program is to provide decent, safe, and sanitary housing to a tenant at a reasonable rent. The dwelling unit must pass the program's housing quality standards and be maintained up to those standards as long as the owner receives housing assistance payments. In addition, the landlord is expected to provide the services agreed to as part of the lease signed with the tenant and the contract signed with the PHA.
People who receive Section 8 vouchers go find their own rental housing and use the vouchers they receive from their housing agency to help pay the rent. Basically, the voucher means that the Federal Government will pay a specific amount of the rent.
If you wish to rent to Section 8 Voucher holders, you should inform the local Housing Authority of the availability of your property and also indicate in your advertising that you welcome Section 8 Voucher holders. Ultimately, it is the voucher holder's decision whether or not to rent your property. Of course, as the landlord, you would screen the Section 8 voucher holder just as you would any other prospective tenant.