@Mark Cruse knows Baltimore very well and can probably give you good advice. 

However, I would like to gain some practical experience in the world of Notes as well.

Notes:*This value is based on rental comps in the area as well as the current lease agreement for one tenant**Prior years' operating expenses were estimated based on current owner's actual operating expenses as provided by the listing agent.

@Cliff ConnorRecommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

Absentee owners are a plus as well...you're really looking to find someone who already has a property manager, does not live locally, and is underperforming (but with a good property/location).

I have both courses and others as well.

Well worth every penny. 

Many people are quick to tell me that I will never be able to collect on any judgment, and I’m well aware of this likeliness.

I'm looking for a property management software that will allow me to upload documents as well.

This is not to say this is the only successful method of real estate investing, but as I'm sure you're well aware, with current interest rates and overall market conditions, sourcing and acquiring LTR deals is difficult unless you're going off-market.