My main concern are shared spaces like the pool and hot tub (turnoff for some renters), huge parties (when both are rented together), shared internet, logistics (multiple locks, parking, etc)Thanks for any insight!

There's a little middle ground that I try to get both parties to meet at. 

That said: I stay away from townhomes due to the presence of HOAs; they can make decisions you are not party to which can materially effect your cash flow.

The good part is that they are giving tenants the ability to see things.

If they decide to leave, you are not going to collect the last months, and I don't want you chasing them for payment.You should have a third meter for the owner, and the dryer can be wired to that meter.

Third, they may turnover more often because a tenant can find a better deal somewhere else.

I believe that the hardest part is the first house.  

Most Fortune 500 companies now use a 3rd party verification service that charges the employee and requires them to get a code they can then give to the PMC to do the employment verification.

Third, learn to say “No” to yourself and to others.

@Jonathan Greene, I agree for the most part.  I