The more you pay upfront the lower the rate, but you have to make sure to do the math on what you payback period will be.

Get the inspection report and check comparable properties quickly for condition and then go to the seller with your proposed reductions and be able to point out condition-comparable properties in keeping with your proposed price reduction.

Yes, it doesn't have to be one purchase. 

If you are looking to be an investor, learn how to be an investor first and then get your real estate license.

Is it a firm 6 months or is it likely to be extended.

Tenants can be hard on things. 

There might even be incentives to rent to long-term tenants, depending on your situation.

There won't be a test or screening to determine your qualifications.

If a rental/lease contract is a legally binding document...enforced by collecting rent...or enforced by an eviction process if rent is not paid....then can there not be a document (legally binding) for a tenant to sign that would relinquish their rights as a squatter or due process of eviction...

A good starting point might be deciding whether you want to focus on rental properties, flipping, or another niche—each has its own learning curve and opportunities.