Property portfolio finance is for investors or businesses with existing portfolios, looking to make further buy-to-let purchases, or buy, refurbish and sell investments. It can also be used for investors to refinance multiple properties at once. In order to free up capital and secure a better finance rate. A portfolio landlord is considered a borrower with four or more distinct mortgaged Buy-to-Let UK rental properties (or seven or more for remortgage applications without capital raising).