I mainly want it to make investing easier (having access to MLS, not having to wait on agents to view properties, etc..) but I am also interested in actually representing sellers and buyers as well.

Is it a bad indication if an applicant constantly moves from one rental home to another, every single year for the past 3 years? 

Some banks will do a rate reset and extend for another term but for the most part borrowers are constantly shopping around financing options.

But you need access as a non mls member and convincing a member who you don't intend to work with to find their replacement could be tough. :)   If you can't find an agent (friend or family member) willing to do that work for you, you can search through the tax records for flips (sales and purchases within a few months) and then google search the old listing address to see who sold the property.  4.

It makes sense to weigh both of my options and compare rates, fees, cash accessible, etc. right?

J Scott has collaborated with Bigger Pockets and published a very accessible guide to flipping houses The Book on Flipping Houses.It's a great place to start on where to look, how to analyze, etc.

Marc,  Our lease states we cans show the property during the notice interval, and access by the landlord is authorized for showings and inspections.The first step is to visit the property to "preview" it for the marketing, and you can note any big issues that may delay occupancy, and even stress to the residents what they could be docked for.I always tell the residents to protect their valuables because its hard to track other people's children during showings, and the more they cooperate and the faster the house leases, the less time they have to tolerate showings.I've had perfect houses occupied the next day.I've had disasters that need  six weeks to prepare.With this effort and a mid-lease maintenance inspection, there are fewer surprises.

Now that I'm expanding to the Augusta area I don't have access.  

So one day, he called 911 and said "if you don't come, something bad is about to go down".And a Sergeant was despatched.The Sergeant, bless his soul, took one look at the property, took photos with his phone, asked for access to the property which was declined by the neighbor, posted a Deputy on the gate, and went and got a search order.

What I really need is sound tax advice and access to capital.