As many people are saying, there are lots of things to learn and practice as you scale with REI.  

I agree with Bruce though, experience is the most practical way to learn these types of things.

If so they should update their official website  https://denvergov.org/Governme...In 2016, Denver City Council adopted an ordinance regulating short-term rentals.

There's no "rules" regarding who has to be on the lease, you can make your own choices but adhering to common practices is probably wise.

It's also a good practice to make sure that the current owner is up-to-date with their HOA fees, otherwise that bill will become yours upon purchase.While some people opt not to get inspections on condos/townhomes that are in good shape because of the nature of the HOA taking care of CapEx, getting an inspection is always a good idea so you can learn more about your property and to potentially discover things that may not meet the eye.

I am familiar with the message of buying above UPB but never known it to be a good business practice.

Something else you'll want to consider is the Lease Laws and other best practices. 

Also - any tips on regulation regarding doing work to siding/porches which have tenants in the property?

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

HI BP Fam,Im hoping to gain some insight on the best practices in using ROI's to scale my business.