I would definitely factor in some substantial capex/ maintenance and repair costs which could lower your returns.  

OR do you call each individual specialist (plumber, electrician, mold expert, etc.)?

Over the past decade, Columbus has attracted substantial investment from tech giants like Intel, Google, Amazon, and Facebook, which have collectively committed over $50 billion to developing data centers and semiconductor manufacturing facilities in the area.

You can learn from someone one step ahead of you and then do business together.I'm sure there are plenty of mentors you could pay substantial money to to gain knowledge and know how but i doubt it could replace actual relationships that are pertinent to your market and current business.

I've done it with every relo and benefitted substantially.

Personally, I airbnb half of my house, individual rooms, and stay nearly 100% booked.

I'm not an expert on California law, but I believe you are allowed to give a 60-day notice of termination for a substantial remodel.

Most of the ultra wealthy individuals sacrifice a lot to obtain their wealth, and I won’t make those same sacrifices.Similarly, I don’t desire to have 5% body fat because I don’t want to put in the effort required for it.I understand that ultra wealthy is subjective, but the main point stands. 

You can program individual access codes to work only during a certain time frame.

You cannot blindly message individuals on BP advertising services.