On the asset, on the risk, on your experience, on the economy, on the supply and demand of those types of loans. 

There is a huge imbalance for supply and demand, with demographics of young couples looking to build a nest.

That's an endless supply of money tax free. theres no tax when you refi and you get equity money for another down payment. 

But you probably need to have sinks and supplies for all of them.

Get your lender to supply you with a loan letter that states how long it should take to close your loan and the maximum amount you qualified for and put a copy of that with your offers.  

At most, the amount of medicine I have personally would get me a minor citation, maybe a night in jail (if they ever tried to enforce it) before my legal team (work benefit) would likely have me out the next day.

Housing price is highly proportional to demand and supply and is tied to available jobs.

Make sure you find similar comps with sq feet, parking, washer dryer, if you supply appliances, safety, school district You could also, do mtm, a 6mo, 9mo, 12 mo lease- to let the tenant choose which works for them 

If you buy from a real plumbing supply house a lot less.

I looked at several in my area of PA and found the deals unlikely to be profitable.My concerns were high HOA fees, as @Jose Ramirez mentioned, restrictions on rentals (not allowed=obvious dealbreaker) and my personal concern about there being a good supply of prospective tenants.My recommendation for you is to check the rules to be sure you can use the property as you intend, analyze it to make sure the numbers work for you and research what the rental market looks like in that community if that is your intent.