Negotiated out need for 3rd party repairs and put in "sweat equity" There were only appliances and light fixtures/fans missing.

If you're unsure of any data, AI will take the best guess of industry standard for that particular repair.

Currently, I plan to get landlord insurance, require renters to get renter's insurance, and make some minor improvements and repairs in the house before fully moving out. 

Purchase price: $90,000 Cash invested: $55,000 Triplex in SE Cleveland (D+ neighborhood)Purchased for 90 and saw 105 for valuation. 25% down plus closing costs and unit repairs has led to about 50-60k going into the deal.

Desperate need of repair.

So, I would be very conservative (for your standpoint) on the researched estimate.I would do what I suggested above, then if the tenant takes you to small claims court you explain to the judge the legislative time restrictions you were under in order to come up with an accurate repair expense.This is yet another example of how "tenant protection" laws, in practice, end up hurting the tenant in the end.

I ended up stretching myself thinner than I should’ve, not accounting for some unexpected repairs and the challenges of managing a rental property with little experience.

When I got the repair photos they only did the cracks, not the expansion joints, and then wanted to charge me more.

Make sure you have financial reserves for repairs/maintenance/CapEx I would personally sell the SFRs - slow market right now, keep that in mind with your selling price expectations.

Often, a major or emergency repair is needed and the owner doesn't respond to fund the repair.