A seller paying closing cost is not all that uncommon FYI. 

I will say its not uncommon for them to get removed as a lot of projects just to get to the size that they warrant them.

Even in ideal Middle West states like Indiana, Ohio, and Michigan, those prices are now fairly uncommon. 

If your creative, its bit more complicated than just looking at those two components to determine if you over payed or under payed.  ...and it can go well beyond that...and I will bore those interested with numbers (LOL).Example:  PV = $100k; AP = $100k; CF w/NO debt = $10k/y (and yes, this is a real property...and not uncommon)Option #1:Offer = $100k; DP (100%) = $100k; Loan = $0k; Annual DS = $0k; CF = $10k/yTotal Cost = $100k; Actual Cost (to REI) = $100k; Cost Recovery = 10 years; Profit over 10 years = $0k (total)# of properties = 1; Total PV = $100kOption #2a:Offer = $100k; DP (20%) = $20k; Loan = $80k; Annual DS = $5k (approx); CF = $5k/yTotal Cost = $170k; Actual Cost (to REI) = $20k; Cost Recovery = 4 years; Profit over 10 years = $30k (total)# of properties = 1; Total PV = $100kOption #2b: Using the same $100k as Option #1Offer = $100k; DP (20%) = $20k; Loan = $80k; Annual DS = $5k (approx); CF = $5k/y; Total CF (5 Prop) = $25kTotal Cost = $850k; Actual Cost (to REI) = $100k; Cost Recovery = 4 years; Profit over 10 years = $150k (total)# of properties = 5;  Total PV = $500k

For a Demetology client, my assumptions are that you are looking at around 3000-5000sf (could be wrong), and on a 10 year lease it wouldn't be uncommon for the TI base to be around $15-$20/sf with anything above that amount being amortized into the lease over the 10 years.Again, these are ballpark estimates with limited information.

Most roof's that need a total tear off have cedar shake underneath the shingles, that is not uncommon at all.

What you outline not uncommon but stop using the words fair nor unfair.

So is cost (usually an additional $7000 - $15,000 is not uncommon). 

Assuming the landlord is competent, is acting within the bounds of the law, and has done nothing wrong, it's very uncommon for the tenant to actually sue the landlord in these situations. 

@Kimberlyn L Moultrie each deal is different but it isn't uncommon.