What site or course do you recommend to start the Maryland Real estate sales person journey?

I’ve heard of folks borrowing from their personal network for a down payment, but is this actually used in practice?

Since you are just graduating college you may already realize that it's not what you know, but who you know (as a personal note, I had college friends that were barely passing their classes however they ended up with really good paying jobs due to "who they knew").

This really depends on your market, personal finances, and risk tolerance.

The city/county laws for the most part seem to mirror state law (AB1482) so my current reading is I am exempt from "rent control" and "just cause" requirements. 

You can look up cash buyers on propwire free, and reach out to the LLC owners by looking them up, or call the agent and ask them.Another option would be to find some private money lenders, and get them to go down on a hard money loan with you, unless you can get all the capital from one person alone (this is very difficult because most people won't loan that much to someone new to real estate). 

That’s a personal question, but time is money!

Each person can provide their own definition of freedom.

As an investor myself there are certainly areas I wouldn't personally buy.

She handles our taxes now for many years and a personal friend.