BUT, we are a Rent Control building so, much of the great stuff that you can put in a custom 15 page lease is not actually legal or binding because of the municipal codes regarding rent control.

@Ryan Ulrich, I stayed in an AirBNB for a single night and the host did custom art guitars.

Brokers have an agent, or fiduciary responsibility to their clients, and a fairness responsibility to their customers.

TOTAL MODERN RENOVATION INCLUDING INTERIOR/ EXTERIOR PAINT, MARBLE QUARTZ COUNTERS, CUSTOM BACKSPLASH/FIRE PLACE SURROUND, CUSTOM CLOSET, LED LIGHTING FIXTURES, FANS, PLUMBING FIXTURES, CUSTOM SHOWERS/ TUBS, CORDLESS WINDOW COVERINGS AND HARDWARE THROUGHOUT.

The problem is that if you do this often you might be labeled as a buyer who does not follow through.   

My friend built a custom home and shop for a Doctor that moved to Alaska.

Does this also involve providing customers with products like water filtration, smart systems, sustainable energy, etc.?

Too many service providers forget who their customers are.Of course, if you have no idea who this lender is, @Luke Saglimbeni, perhaps because you found one another online, then this could simply be just a scam.

The third type of mastic used in tiling is typically confusingly labeled for sale as "premixed thinset."

I'm am not affiliated in any way, just a happy customer.