I currently have a few single houses for rent which are directly under my name, and also the mortgages are under my name.I am considering to move the houses to an LLC 100% owned by me.

But, you can use it to buy a 2-4 unit (2 unit are much easier then 3 or 4)or house hack a single family meaning live in the house and rent rooms to friend having them pay you mortgage for you.

Monthly joint income is 7X the rent and one credit score is 630 another person is: 712.

ESS has an integrated website so people can rent online. 

Recently I've seen a massive increase of homeowners rolling up their sleeves and taking on DIY projects either on their primary homes or on their rental properties.

It increases your junk spam.

We just say we rent out a bedroom in the basement with a private bath and they have use of the kitchen & Rec area (livingroom).

Current total monthly rent is $2675.

If I hired a PM that would also take care of collections (among other things) would I still need a service like rent redi?

You are in control you put the rent money in and that money generates  9% compound interest.