Hey @Joaquin M Dugan Jr, I'm a first-time investor, so take what I say with a grain of salt.
I'm having a hard time finding comps in the area. My PropStream subscription only shows 3 properties within a 1.5-mile radius that sold within the last 12 months, which is already a wider geographic net than I prefer to cast. And two of those properties were for all-cash offers, which tends to skew the price-per-square-foot average down and implies that most of the people doing the buying in the area are other investors, not owner-occupants. To me, the lack of owner-occupant comps tells me that the neighborhood may not be as up-and-coming as you thought, and that the property may need to sit on the market for awhile if you decide that the BRRRR isn't working out and you want to cash out. The longer it sits on the market, the higher your holding costs would be.
The lack of comps will also mean a higher risk of an appraisal coming in low when it comes to refinance. Appraisers in different regions rely on different metrics, but comps are one of the metrics that almost all appraisers will lean on heavily. The fact that there are none in this area will mean the appraisal will become much more speculative and subjective. A more subjective appraisal means you *might* not get as much cash out of the deal as you initially planned for.
You've budgeted for an ARV of $100k, or $43/sq ft. (property appears to be 2,326 sq ft). The one non-cash transaction I've seen within the last 12 months within a 1.5-mile radius is 3414 Christine Circle, Memphis 38118. This property sold for $125,000 (or $58/sq ft) in Feb 2020, but this house was built in 2007 and is in an area with lots of curb appeal (see Google street view photos from March 2019). It does appear to have a similar risk profile in terms of safety (a 3/100 on NeighborhoodScout), but the fact that the two properties have such different levels of curb appeal tells me that your property should skew lower on PPSQ. Which it already does (i.e. $43 vs $58 / sq ft), I just have no idea whether or not that's enough of a discount.
Speaking of which, having a backup in case the BRRRR doesn't pan out is probably a very good idea, given the characteristics of the neighborhood. I'm not local to the Memphis area so I plugged the address in to NeighborhoodScout, and it's telling me that address scores a 1 out of 100 on the safety / crime scale (100 being the safest). That's... not great. Another data point I like to use is checking Yelp for which major grocery chains serve the local area. I find this helps me identify which areas are "food deserts", or places which the major chains won't serve due to economic reasons. Here's the Yelp results I found. There's an ALDI about 2 miles away from your property, but that doesn't say much as I've found that ALDI will service areas that other chains won't touch.
I see you've budgeted 10% for a PM which is a good idea, but you may want to make sure that you can even find a PM who is willing to take on a property in this neighborhood. The best PMs are picky about where they manage, and it could be really hard to find a PM who is both high-quality and willing to work in such a challenging part of town. If you can find one, they may end up charging significantly more than the industry-standard 10%.
Last but not least, this property was built in 1930, so it's 90 years old at this point. I'd be concerned about the remaining lifespan of the property's major components (roof, foundation, HVAC, electrical, plumbing). $20k in repairs sounds low for a property this old and in this kind of neighborhood. If you're unsure whether that amount is sufficiently conservative, I recommend including an inspection contingency in your offer. If you determine there will be much more work needed, you can use this to come back to the negotiating table and try to get the price down to something that will cash-flow for you.
Good luck with the deal, I hope it works out.
Richie