Start with BiggerPockets Ultimate Beginners Guide (free).

The best thing you can do is know your numbers, pick a small section (preforeclosures, absentee owners, tired landlords, etc) and stay laser-focused on that niche.

Please click on the links, give them a read, and share your thoughts in the comments.First is a post that I feel will help not get overwhelmed with the amount of info that is here on BP:https://www.biggerpockets.com/blogs/5868/52761-the-simple-guide-to-getting-started-on-bp The second is a post that will help get you focused with your real estate investing goals:https://www.biggerpockets.com/blogs/5868/52743-im-new-to-bp-any-advice-would-be-appriciatedThe last one is a post that will help you choose an “investor friendly” real estate agent.

I hired an eviction company - and I have the keys and have a crew set to do a make ready on it... she certify mailed me the keys and has moved to an extended stay hotel.I'm obviously keeping her $1,000 security deposit - but she also owes me over $3,000 in missed rent.

I understand it counts towards the down payment upon closing but does it need to stay in escrow or can the owner/seller just do whatever they want? 

I know it would probably be stressful having a newborn, but let her know that you only need to stay in the property for a year, then you could move out and repeat the process.

Here are some recommendations for you:Find and connect with other BP members that are in your area: https://www.biggerpockets.com/search/usersSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingIf you wish to tag someone in the conversation on the forum, type @ followed by their name and then select the name of that person which should appear below the comments box.

They've been in my SFH rental property for nearly 2 years now (and are staying another 2 years), take fantastic care of the property, NEVER have any issues with them etc. 

If the neighborhood goes from a B to a C do the tenants stay there and continue to pay me market rent for a B property?

Please click on the links, give them a read, and share your thoughts in the comments.First is a post that I feel will help not get overwhelmed with the amount of info that is here on BP:https://www.biggerpockets.com/blogs/5868/52761-the-simple-guide-to-getting-started-on-bp The second is a post that will help get you focused with your real estate investing goals:https://www.biggerpockets.com/blogs/5868/52743-im-new-to-bp-any-advice-would-be-appriciatedThe last one is a post that will help you choose an “investor friendly” real estate agent.