"There are more banks and other lenders increasing their portfolio lending," said Guy D. Cecala, the publisher of Inside Mortgage Finance.
The consultation suggested that buyers of 15 properties at a time could escape the charge, meaning the Blairs might look again to bulk-buying in north-west England to increase their portfolio.
They are sticking to their guns and in most cases even increasing their portfolio allocations to the small stocks and international issues that have been left behind during the last five years' stampede of big American stocks.
So investors looking to increase their level of interest income could unintentionally increase their portfolio's risk profile.
Pension funds, insurers and other big investors must increase their portfolio share of noninvestment-grade debt in order to meet their actuarial requirements.
"The next phase is people will continue to buy devices, but will start to rationalise or increase their portfolio of devices, as well, and try to work out what really fits their need," he added.
At the other end of the spectrum, you have an entire demographic of lonely, old, rich, white men who hate their wives and will do anything to increase their portfolio of masturbation fantasies.
This year, the regulator overseeing the companies gave them more leeway to use their capital and the companies responded by increasing their portfolios.
Tony Lune, who runs Click Lettings & Sales in Birmingham, said all of his calls are from investors looking to increase their portfolios, including some buyers from London looking for lower prices.
