You have to evaluate based on market, but there are other means of achieving forced appreciate that might make more sense. 

The ease of buying and selling real estate wouldn't exist without NAR and MLS.Either way, this is like someone suing attorneys for charging a base of $250 an hour as "That's what they charge" and then a jury finding the attorneys liable for price-fixing.

Always weigh the pros and cons of each option based on your financial goals and circumstances.

Gluing the pad to the step might cause it in time to delaminate(since it's glued to the plank with a pressure sensitive) and release from the step especially when people are coming down the steps.Your chart covers a lot of the bases but not the ones that can't get you in trouble namely concerning the install.

Sounds like prices vary based on each situation but I'm looking at $15k.  

Based on your location, security is probably important.

Could an applicant claim that you rejected them based on protected status?

I then decided to look for a flip based off what I was seeing in my local market.

Your tenant base for an MTR that requires a minimum 6 month stay is small.

While I do not know the specifics of the purchase or exact location, I understand the Philadelphia market well enough to place this property in a lower tier neighborhood based on the ARV Mario shared.