Switching to portfolio loan for rentals - improve DTI ratio?

[Bhanu A.]

Hi,
I'm a mortgagor of a few investment properties. All of the properties are under LLC for liability reasons. Of late, I've learnt from bankers about severe restrictions on buying additional properties considering the number of rentals that I have. Some bankers don't lend if the properties exceed a certain number. And also mortgages on the properties is adversely impacting my debt-to-income (DTI) ratio when rental income is not considered. With this situation, would switching to a commercial/portfolio loan for all of them (on LLC) help me buy additional properties and improve my DTI ratio? Appreciate your answers. Thanks in advance.