**Comprehensive Content:** The educational materials provided are detailed and cover a wide range of topics, such as fix-and-flips, rentals, and creative financing strategies.

Alternatively, you might want to travel to Mexico and check for yourself on the ground.

Better materials such as stronger  lumber were used when the earlier vintage properties were built and many  contained design characteristics such as stone or brick work and intricate millwork that are too costly to replicate today meaning many buildings are significantly below todays replacement cost. 

I'm not comment on voiding thing because I'm not an attorney, but to me, as just a businessman, I will tell you that the written material you posted appears to me to be like a mousetrap.

I remember reading something in the Wall Street Journal the other day that buyers lean toward modern finishes with a nod toward sustainable materials.

For liability I'm thinking if someone gets hurt on the job site, we find out the home building materials were toxic, something along those lines. 

Leather is a living material and it will dry out and crack if not maintained.Microfiber is a good choice like @John Underwood said.

Nothing better than four draws and never a lot of money up front "for materials".

Always keep in mind the alternative, the bank has no duty to sell for less than what the open market will bare for the asset.

Alternatively, are there some ballpark estimates for each expense item (e.g., 8% for vacancy, 3% for capex, etc.) that can be factored in as realistic or worst case scenarios when analyzing the deal?