It all depends on your location and service.

The members here on BP that talk about STR auto-run systems didn't install those systems and find dependable cleaners & handymen overnight.

I have great lenders and property managers I can refer you to.In Cleveland, it all depends on what your goal is.

I think it depends on the appraiser. 

:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

Because we are dependant, for the most part, on word of mouth recommendations it is vital that our recommendations are valid. 

Alternatively, I have spent the last decade doing technical work in cybersecurity, and can land a job between $140k-$190k (depending on where in the US). 

If you did a cost segregation study on the property in the past, you may have to recapture the depreciation taken in the past.capital gain tax rates are 0, 15 or 20%There is also a potential 3.8% Net Investment Income Tax.Also, don't forget state income taxes depending on what state the property is located or your state of residency.Best of luck!

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

It will depend on where you are doing your deals and what the liability is that follows you after a sale.