However, there is going to be something.My theory - I think that commercial debt from companies in the retail sector is a major weak point for the economy. 

And the market data approach uses information gathered from recent comparable sales to determine value.The appraiser considers all three methods when making a final determination as to current market value.Comparable Sales Data or “Comps”In a weak market, it is difficult to use comparable sales data to determine market value.

@Lesley Whitley both of those areas can cash flow well in the short to mid term due to the low entry point but both have weak economic and demographic trends.

As you gain insight into their business, you may be able to identify weak spots or areas where you can see they need help.

My question is, are these the signs of a weak deal?

Raise the rent to filter out weak renters who's values tent to do a lot more damage.  

In the long run you will be much more successful than the great networker who cant deliver the goods.Ideally we develop both qualities and abilities to maxamize our effectiveness, but an introvert can definitely be successful in the field of real estate, if you pick the right niche that plays to your strengths instead of your weaknesses.As Dan Sullivan says, if you spend all your life trying to improve your weaknesses, in the end you wont have any real strength, you will just have a lot of strong weaknesses.

As long as you've complied w/ your portion of the contract the seller is in a weak position. 

Weak space heaters so you won't blow a fuse or trip a breaker (which  I hope you have breakers) is not going to get the space to the 68 degrees that you are required  in most areas to be able to  heat to for a tenant.

Where you go from there depends on how serious you are, how much money you have to burn on learning, and what your own strengths and weaknesses are.