China has cheaper labor, almost no EPA constraints, far cheaper electric power with their new Dam, etc.

Make sure it has good electrical and good structural.

I use an electric Oral B toothbrush.Desiring to improve my oral health, I decide to begin brushing my teeth an extra 2 minutes, for a total of 4 minutes.

And, the illiquidity of the investment is a feature, not a bug.

Electric, I have no idea…I don’t want to turn on the utilities, leave for the night and the place is either burned to the ground or flood.

For the first part of your question even if you were working with a realtor, I don't personally know many that have a true pulse on rehab costs and I wouldn't make any investment decisions based on their rehab cost projections.My suggestion would be to study how to evaluate the Big 6 rehab costs: roof, siding, windows, HVAC, electrical, and plumbing. 

We have also completed some exciting improvements including retyring a boiler for heat/cool ductless mini-splits and 9 units being electrically updates.

Covid related supply chain- We had a project where we needed a 300 amp electrical service. 

Right, I mean people use the companies with IDX feeds off the MLS now to schedule showings easily when they don't want to bug their agent, but then have their agent actually write the contract and handle the transaction.

Don't forget about paying to start electrical, gas, water and internet services.