I personally invest in the North Dallas area (Prosper/Celina) where there is lots of growth in homes with nice lots.

No, you cannot "write off a new truck every 3 years" as those YouTube professors suggest.Prepay or delay personal itemized deductions.

@Dustin Horner you should be contracting maintenance work and creating a preferred list of vendors as @Phillip Austin has recommended.The first person you hire to help you should be to handle what you LEAST like to do yourself or has the greatest time savings for you!

If a property goes into foreclosure on a second, as Ken said you will either be buying it subject to the first mortgage - meaning it's your mortgage now - or the first has to be satisfied to take possession of the property - or the owner of the first is going to be there bidding what they are owed, so you would need to outbid them to get the property and then you are the person paying off the first mortgage. 

My first MF I represented the buyer on I made 100k. for maybe a weeks worth of work. 3. if your going to be looking a more resi style duplex 4 plex a lot of those get listed and having access to the MLS is far superior to any other on line listing service ONE simply because you will be able to talk to the actual LIsting agent not someone paying for leads.And then of course having access to MLS lock box's and not relying on agents.. this is huge.Now if your maybe going to buy one property sometime in the future and you have no interest in learning the RE laws of your state or making any money with transactional real estate then sure.. its a pass.. although I would still recommend the pre license course so you learn the basics  the vocabulary and states unique laws.. knowledge is power in RE.

Personally (as a STR-focused REALTOR), I would never give you numbers and tell you you can hit them. 

That will be the best spot to meet an investor friendly agent in person or at least meet other investors in your markets that can help connect you to the right agents.

Left me feeling like a basically have a retail/fulfillment person on my team so I'm a big fan and would recommend giving them a shot, especially if you're in a similar position as I was: Needing to furnish an STR quickly and cost-efficiently. 

It's a matter of finding the one where the weaknesses are in areas that aren't relevant to your needs and/or don't aggravate your personal pet peeves. 

Personally I love quadplexes.