Quote from @Aaron Wolman: Yes, these charges are fair.

I have a city rowhouse with a 20' sidewalk and 5' wide steps with 9 treads and two 7'x7' landings. It's a 4 family, I just don't want that kind of transactional relationship with any tenants. At another property with ...

Hard to say if it’s a good deal without the most important piece of data, what is the fair market value? 

Compared to other services that might offer lower-quality leads or require higher upfront costs/paywalls, Prime Tracers also give you free lead credits on sign up so you can actually see the results before you commit to a purchase.

Many tenants will cut their nose off to spite their face and move, rather than accepting a fair increase:(What does Zillow say the rent should be?

But without the experience, knowledge and capital (actually CREDIT CAPACITY) I accumulated the prior 2 + years, this transaction would not have been possible.

You are still going to get the best rate possible with your significant down payment and with good credit I'm assuming.   

I know this is above and beyond what most municipalities require, but being fair will make the whole process easier.Additionally, a new landlord can reduce the 60-90-day notice by offering more moving assistance (cash and/or labor) if they move sooner rather than later.

I've bought my last 3 house at fairly conservative pricing and reinvested into them.

Other than paying for an appraisal or BPO (and maybe a credit report), you should not pay a lender anything until your loan funds.