I would add another 10% to your budget to account for the unknowns. 

Gut out rehabs also make good margins as many investors dont even want to touch/look at the deal because of the inexperience of the "unknowns" of construction.There are a lot of reputable out-of-state cash flow investors, just read blogs and visit sites, podcasts are great.You might want to check turnkey-reviews.com if it interests you.

There might be a lot of money to be had here but there could also be a big problem and I hate unknowns.

It seems like that's the biggest unknown quantity that can make condo rentals extremely unprofitable.

Repairs / rehab is unknown currently until we go look at the property (hopefully today).

Given the fact I am a contractor, it's much easier to assess rehab budgets on the fly but still there will be unknowns.  

I was scared of the unknowns.

Lots of headaches and unknown costs.  

Or $200/doorThe current owner has been bad about getting us documents, we have yet to see the leases, which is making me nervous, and the cost of the roof being an unknown is also worrying me.

This isn’t the case for all buyers, however, as many are continuing with their planned property purchase.It is so far unknown if – or to what extent – Brexit would affect the rights and overall experience of British homeowners in an EU Member State.