I've recently been viewing a number of properties that belong to a very large portfolio, the seller is doing much bigger deals now and wants to offload his smaller rental properties. At minimum there are two SF houses I want to buy but maybe five or six.

The houses average around $100,000 each

What would be the best way to move forward with purchasing as many as I can?
I currently only have 1 mortgage in my name, In January I should have $135,000 cash from a refinance

Can I do all five in one go with a conventional fixed mortgage lender?
Do I need to find a portfolio lender who can do similar rates as a convectional loan?
Anyone have a recommendation for a portfolio lender in Michigan?

I know I can get hard money lenders but the rates and fees are so high it's hard to make the numbers work.