(And I would factor in some expenses in your calculation like maintenance, etc). 

If you are buying their relinquished property, providing them  with a longer closing period could be a negotiating factor as it would allow them more time to find replacement property before their deadlines start to run.

In my opinion the HOA will never go down so you might want to factor in % increases.

The time factor with rising rents and values is one way they survive. 

I've actually joined Lifestyles Unlimited and have gone to one class so far. 

Too much of a risk factor given what could happen and now that you know I think its an ethical decision.

Having the rent for an area you're not investing in won't help you much, frankly, since there's different factors that come into play to affect rent levels.

There are a lot of factors that will come into play when the IRS considers whether someone is an employee or a contractor, and "who purchases the materials" is just one of them. 

That'll help you factor any foreseeable repairs into your budget. 

I believe I understand what the commenters are saying - don't factor in your living expenses because that may make a deal look more attractive, and you may pay more than you need to on a house...