"Question: have you ever filled out a spreadsheet of cost and lifespan of each product of a property?

@Sang Kim- thanks for clarifying you are trying to get a commercial loan ...this is a  completely different product than a home loan ...You still should be able to  locate and obtain a good commercial loan  without  having to pay any fees upfront  ( other than possibly paying for the appraisal after the  loan has been  approved )

Most of them that are successful like a Tony Robbins etc they make HUGE Money Millions upon Millions with their training and backing certain products..

Squatters can now be locked out of a property and their possessions removed, but a landlord CANNOT physically remove the squatters themselves.The local police are supposed to enforce these laws and assist landlords in removing squatters.The reality is that when you call the Detroit Police to remove squatters:1) The police often don’t know/care about squatter laws and state you must take the squatters to court to evict them.

These companies selling products tend to drain agents dry at these conventions selling every do dad that is supposed to give them an edge over everybody else.

If a person benefits from a product they sell it’s only natural if they promote what is perceived as a benefit even if the quoted benefits are not automatic or even a given. 

I talked to my lender contact and, as Kerry mentioned above, it's pretty uncommon that a traditional lender would offer a HELOC product on an investment property (non-primary home). 

No sure about that as buyers want to see the finished product and showing them before pictures will often not be well received.That's funny, my wife said the exact same thing about showing them the before pictures. 

You know, like any other INSURANCE PRODUCT.  

You could probably put in the lease that all items needing hanging must be done with the removable hook/tape type products. 3M has a bunch where you pull on the tape and it releases.