The roofer gave me a invoice with high level bill of material, and a statement that it has 2 years of warranty and brand name of the shingles.It does not say brand name warranty or model or batch number etc. 

But we also know that the materials he employed on the Usonian houses are not exactly affordable by today's standards... 

If I were you, I would arrange to have your materials removed before they get there to work because city guys are pretty rough on stuff they have to move.We occasionally found issues like the corner of houses built in the easement and sometimes on top of a water or sewer line.

Slowly build out a repeatable process...if you continue to change things (as in different types of properties, different levels of renovation, different finish material, different neighborhoods, etc.) you create more variables and make it harder to solve to the problem.I am a math guy and less unknowns/variables you have the easier the problem will be to solve. 

When you have unscheduled entry as an option, I think it encourages them to do weird stuff like hide stuff in weird spots, etc because they are always on guard.Hoarders clauses would have to be linked to fire codes I think for excess people and materials near fire sources, etc.

This will usually lead you directly to low barrier stagnant markets where the cash flow represented in your spreadsheet does not transfer to reality and the most of the equity is "paper equity" because you will never see it materialize yet many look at completing the BRRRR as the ultimate success.I recognize I am using some assumptions but let's assume you have $100k to invest and purchase and renovate a home in MARKET A for $400K but once renovated the home is worth $500K.

But if the blue sky materialized then repurchasing that equity could still turn into a win/win.

Issues we faced were conflicting opinions on the next home we should purchase for our portfolio and what upgrades to do when we were doing a flip, the cost of labor and materials, etc.

The policy consideration behind the higher leveraged loans is to provide financing for individuals who have high earning potential and are at the start of their career where the earning potential has not yet materialized and perhaps are dealing with the added burden of student loans.

From talking to locals, there's a couple of issues than need to be addressed, some are the non-ecological practices that some of those developers have, unfortunately, our government profits from this investors and allows them to destroy manglers (which are the natural water purifying system of that area) dismantling hectares of mangroves and degraded the habitat of resident and migratory species burying animals alive.There's proof of fecal material floating beneath the city of Tulum, only 20% of the water is sent to the water treatment plant, there's no infrastructure for the exponential growth.The landfills in the middle of the jungle that is leaking hazardous pollutants into the freshwater system and that something that developers won't tell you.I love my country and it would be a disaster for everybody if this place ends up like some other great beaches around the world, that are completely ruined by greedy investors not following the rules.There's no urban or comprehensive master plan, and one of the risks is that Tulum will be like Playa del Carmen is today, overgrown and with environmental devastation.I will advise doing a lot of research before getting something in Tulum, different country, different rules, and practices.