Partnership and LLP agreements often contain lengthy notice periods and onerous restrictive covenants. These are more likely to be enforceable than for employees, so partners will need to understand their legal position and need to carefully negotiate exit terms.
Partners and LLP members will have more stringent legal duties which will restrict any preparations to join or create a competitive business. These restrictions will often be expressly set out in the partnership or LLP agreement but will also be implied as part of the relationship between the partners and the firm or LLP. These might include fiduciary duties or obligations of confidentiality.