Agree it is difficult to assess costs when they vary so much by location.Keep in mind that some turnovers are sickenly expensive, and that is just the nature of the business. 

Quote from @Will Greenlee: I would agree with @Drew Sygit every software has its kinks and this one along with all the other ones started somewhere.. 7-8 years ago Buildium was less effective than it is today, and now it is a lot better.

I agree that diversifying the proceeds is the best strategy.

Any underwriter will agree with you and I am not going to argue against obvious.

Once it's placed into services as a rental, the property taxes will be a rental expense.I agree with Gregory above and speak with the company he has his mortgage with.

I agree with this. 

If I had a good tenant and they continue to be a good tenant, I don't care where they legally get their money from.I agree that most S8 do not meet my criteria even without considering the source of the income.However, we have another policy that also works against S8.  

There are several other issues (undisclosed maintenance markup fees, excessive charges to our account, significant reductions to agreed rent without communication, etc).

I agree with the others. 

Hehe @Lisa Marie I agree with you.