I would add that screening tenants and shorter leases (2-4 months) is the solution to mitigate the risk of being stuck with a problem roommate-tenant. 

Same for 2-years of job/income stability.Tenant Default: 10-20% probability of eviction or early lease termination.Section 8: Class C rents usually meet program requirements, proper screening still recommended.Vacancies: 10-20%, depending on market conditions and tenant screening.Cashflow vs Appreciation: Should cashflow immediately, at the lower end of relative rent & value appreciation.Class D Properties:Tenant Pool: Majority of FICO scores under 560, little to no good tradelines, lots of collections & chargeoffs, but should have no convictions/evictions in last 12 months.

Well, those will need attention after every moveout.This is where your tenant screening comes in. 

A quick non-political note on two topics I can’t seem to avoid: mass-deportation and tariffs.I am not concerned about the saber-rattling from the TV talking heads about “mass deportation” and “tariffs.”

You'll really need to screen your property manager/contractors.

I mean after screening a tenant, the only documents I usually deal with them about are signing lease addendums or new leases which are either done electronically or in person.

Both screen doors upstairs do not function correctly.Plumbing problems-The garbage disposal in the kitchen was not cleaned, is smelly and the rubber is flipped outwards.The bathroom sink in the smaller bedroom does not drain correctly despite us using an entire bottle of drain cleaner on it.Common areas that are not kept clean or have garbage-There was no attempt to clear the patio of years of accumulated debris and filth.

Don't forget to NOT get desperate and lower your screening criteria!

Plus new folks do a very poor job of screening the buyer for Ability To Repay (ATR) which involves pulling full doc and calculating the borrowers DTI, honest income, honest debt payments, prior debt payment histor (FICO) etc etc.Plus shockingly (or shocking to sellers) if you bought this investment house, fixed it, then are selling with financing you are selling "inventory" and y9ou owe taxes on the gain in the year of sale, you are NOT able to use installment sale to spread out paying taxes. 

With the tech I am using (a lesser known PMS) I am able to automatically screen guests, get their selfies, write leases, and collect deposits in my work flow even for Airbnb guests.