It’s quite common for a block of flats to be owned or managed by a company made up of the Leaseholders. These are usually known as Residents’ Management Companies (RMCs) or Right to Manage Companies (RTMs). Being a leaseholder and being a shareholder or member of an RMC is not the same, even though you could be both. RMC directors need to keep a clear distinction between the two roles when making decisions. The Difference Between Shareholders & Leaseholders There are both legal and practical reasons why being a shareholder and being a leaseholder is different, even though you could be both.