You might have to compromise your needs and/or the value factor and that balance is something only you can determine but as long as you go into it clear-headed, it should make sense.  

So we reached a compromise, where my brother wants the initial $18,000 he invested in the property and my fiance and I will pay that to him and pay off the current 100K in mortgage and then he will do a quit claim deed to transfer the title over to me and my fiance.   

The slow communication was a huge problem and the seller seemed unwilling to compromise on issues Or extend deadlines.

@Fay Brown every single time I’ve bought property there’s been some compromise.It is extremely rare to find exactly what you want in any market, though obviously it’s easier in buyer’s market (ten years ago) then a seller’s market (today).A good real estate agent should be able to help as far as what are realistic expectations and what are some areas where compromise might be advisable, in order to open up the field of possibilities a bit.It’s definitely true though, that type of financing (or lack thereof, in your friend’s case) has no effect on determine what’s out there, available in the market for making an offer.My usual advice here is: Make your own market.

If you feel your family health is compromised move.

You may consider negotiating with your tenant to see if a rent increase in 3-6 months might be a suitable compromise. 

Other than that, you're already on the right track: Have a civil discussion and try to reach some kind of compromise. 

This is when the "real" credit and background check comes in, and where any compromise to your screening can hurt.

Due to some financial issues his credit has been compromised and he is not able to get a loan on the equity he has on the house.

Cast iron and steel to a lesser degree really compromise the signal of wireless devices.