The tenant is incredibly difficult to deal with as she smokes in the home, doesn’t pick up after the dogs, doesn’t maintain the property, and rarely pay rent on time.

.- Combining more than one of these options could also be a good possibility.- if you need referrals for lenders, developers, buyers reach out.

Rarely do I see regular market rent hit 2%, even in the D class areas.

There can be some exceptions as noted by @Eamonn McElroy but those are rare and not likely in your case - though do check with counsel to be certain.Because income is not taxed as it is earned, you are able to more effectively grow savings by compounding the gains over time and reinvesting earnings within the plan.  

I live in Jacksonville, North Carolina; however, I currently drive throughout the US for a large transportation company as a truck-driver.Since I am rarely in a single location for more than a day at a time, Investing is challenging. 

Turnover cost (cleaning and repairs, but also typically 1-2 weeks of turnover time with no rent -  it’s possible but very rare that you can turn over in just a day or two, even in a strong rental market), then there will be service calls/repairs/appliances replacement and maintenance, flooring, painting, etc.  

Plus people rarely purchase their personal residence for a price that makes it a good buy and hold, although in this case yours is pretty close. 

No piece of paper is preventing that and is rarely, if ever, enforceable over your freedom to choose who you want to work with.

That BS, combined with no mention of cost, are all the red flags I need.

I don’t know the courts well enough to know if there is any one or a combination of an older seller, potential for loan being seen as a personal/consumer loan and the rate of return would be enough to cause this deal to be completely dismissed as a consumer loan if I had to bring it to court for non-performance.Thanks in advance for any thoughts.