contract/agreement_maintenance/views/maintenance_request_view.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <record id="maintenance_request_form_view_agreement" model="ir.ui.view">
        <field name="name">maintenance.request.form.agreement</field>
        <field name="model">maintenance.request</field>
        <field name="inherit_id"
               ref="maintenance.hr_equipment_request_view_form"/>
        <field name="arch" type="xml">
            <field name="priority" position="before">
                <field name="agreement_id"/>
                <field name="serviceprofile_id"
                       domain="[('agreement_id', '=', agreement_id)]"/>
            </field>
        </field>
    </record>

    <!-- Inherit maintenance request search view-->
    <record id="view_maintenance_request_filter_agreement" model="ir.ui.view">
        <field name="name">maintenance.request.select.agreement</field>
        <field name="model">maintenance.request</field>
        <field name="inherit_id"
               ref="maintenance.hr_equipment_request_view_search"/>
        <field name="arch" type="xml">
            <xpath expr="//group" position="inside">
                <filter string="Service Profile" domain="[]"
                        context="{'group_by':'serviceprofile_id'}"/>
            </xpath>
        </field>
    </record>

</odoo>