Consulting with a contractor or local building official is advisable to navigate compliance with safety requirements while optimizing your renovation project effectively

There are other things but this is the thing that creates the most waste of time. 

But in states like Florida, Texas, Arizona, and Southern California, seasonality has a much smaller effect.

There are going to be three levels of addressing this 1) things you can simply go there and do anytime (pick up pet waste and throw it away) 2) things you can do given proper notice (enter the unit and inspect, repair damage etc) and 3) things you can only do given proper process/procedure (notice to vacate, increase rent etc.)

They will likely also need to close any access points to satisfy city inspectors that the now capped chimney cannot be used to "vent" anything in the future.You will likely want a demo team that is much cheaper to do the actual demo and haul off, but you need either the mason or an engineer to stipulate how far down they can/should demo, while leaving enough room for the cap to be effective and maintain any structural rigidity into the future to not create more issues.Long story longer, I would call more licensed, insured contractors.  

Lawyer up--anything else is wasting time

So never waste a failure, learn from the no's and how to attack similar conversations or situations differently in the future to give you a better chance at success.

While I can’t promote my company directly, I’m looking to connect with cash buyers in key markets such as Florida, Arizona, Michigan, Alabama, Nevada, Ohio, Texas, North Carolina, Tennessee, and Georgia.I’d love to hear from anyone who has successfully built relationships with cash buyers.What strategies or platforms have you found most effective for connecting with them?

This is because the earlier years see a large jump in IRR due to the leverage used, however this effect diminishes in later years.2.  

Ensure the price reflects these issues so you can negotiate effectively.