That's driving around certain neighborhoods looking for boarded up or neglected/stressed houses, search out the owners of that house (there are a number of APPS that use GPS tech to help you with that), you contact the people and see if they want to sell.

If that is not for you then a property management company that would take care of it for you might be a good investment for peace of mind.Now for the “Getting excited” part of your question, A good way to handle it would be running conservative numbers and stress testing your deals, by that I mean what if the interest rates go up on your mortgage from 3.97% to say 6% are you going to cashflow, break even or potentially lose money?

This could reduce the stress of putting it all on your shoulders.3.

I'm trying to help her find any loophole as the stress of this and being unable to enjoy her own home peacefully with an antagonistic tenant next door and having to smell it daily is really starting to affect her.

This way you can act accordingly and in a timely manner rather than stressing and scrambling when a problem arises.

If there's a hole, it may be a red flag.b) sensitivity analysis: I examine all the assumptions, and make sure I can live with the worst case scenarios.c) "Stall and see": if they are getting money over multiple years, and there is no penalty for investing later, I would usually wait so I get some real performance data, versus having to look at theoretical pro forma information.d) Recession stress test: I will not invest in anything, until I subject it to recession level stress and see if I can live with the result.

Not only will you be at peace with where you live, but the Mrs. will be too, and that is probably more important lol.But seriously, the stress of "I want to get out of apartments" could weigh heavily on both of you and create a lot of stress.

I really appreciate the feedback everyone, I’ve been crazy stressed over this first flip and it’s definitely comforting to have support

So buy for 100k, but in 100k, and have it worth 300k, - now it's worth all the stress, energy, time, and money this will require... you're anticipated margin is too small to make this a good deal - unless the area is so hot you see the value appreciating significantly in all the next few years. 

this is good.. folks need to be able to buy that first home without being under a ton of stress through the process.