FreeAgent for Landlords will auto-populate the UK property (SA105) pages of the Self Assessment form where possible and allow you and your accountant to submit the return directly to HMRC from the software.
If you have other (non-property) income to include, such as income from self-employment, you will be able to enter this manually in FreeAgent for Landlords and include it with your Self Assessment submission. However, please note that if you choose to submit your return to HMRC through FreeAgent for Landlords, you will not be able to submit any additional details via an alternative provider, as you can only make one Self Assessment submission.
If you use a separate sole trader or limited company FreeAgent account to record your other income, you can only make a submission from one version of the software. For example, if you choose to submit from a sole trader FreeAgent account, your Self Employment pages will be auto-populated where possible, but you will have to manually enter the figures for the Property pages (which you can obtain from your FreeAgent for Landlords account).
Conversely, if you choose to submit from a FreeAgent for Landlords account, the Property pages will be auto-populated where possible, but you will have to manually enter the figures for the Self Employment pages (which you can obtain from your sole trader FreeAgent account).