New four loan limit is keeping my clients from buying! Help!

I have found that the new four-loan limit is keeping good clients/buyers of mine away from pursuing so many of the well-priced properties currently on the market. How can we work around this without having to seek private lenders that charge exorbitant interest rates? I work with quite a few small investors who are successful with their current properties and want to grow their portfolio - and now find themselves shut out of so many great opportunities. How can we as real estate professionals help to spur the economy when qualified buyers can't buy?