Multiple Mortgages more then 4

[Gary Burnham Jr.]

I currently own the max 4 mortgages on 3 investment properties and 1 residential home. I am going to purchase more rental ivestment properties in the future. Has anyone heard of the new rules regarding multiple mortgages? I am under the understanding my only option would be a portfolio loan on the 5th mortgage. Is this correct? Are the interest typically higher on portfolio loans? Any information would be greatly appreciated. Thanks.