Or short term vacation rental?  

He also sent us a text stating that they will vacate the property at the end of their lease and to not schedule any viewings.We replied that the Civil Code allows us to enter (citing that we are entering during business hours, giving almost 48 hour notice and the reason as to why they are entering).

I’d like to give a proposed notice to vacate, and if payment is not received by X days, follow through with an actual notice to vacate.

@Marysue ConnellyI'm not a lawyer and this isn't legal advice.Currently, if you want to discontinue a lease that is expiring, you simply need to provide a written notice to vacate to the tenant with the appropriate notice period - our lease agreement states 60 days unless a lease is month-to-month, Colorado law typically only requires 30 days notice.

Over the last several years, all of the talk has been "how much cashflow can I make with my vacation rental investment?" 

I also recommend giving him the notice to vacate, he is not willing to acknowledge rent increase or sign a lease. 

My wife and I are looking to invest in existing or project-stage vacation rentals in Mexico / the Caribbean.

It's like they got their golden ticket so now it is time to go live and relax in a small vacation town.  

After all PITI, utility, and services (lawncare and cleaning) costs I have $7,225.I set aside 25% of this for my maintenance fund.The remainder funds my lifestyle, wife has a Tesla, and quarterly vacations as well as business growth.In 2023 I am tracking to build 4 duplex units designed as room rentals funded in part from a recent land sale.

In the 8 months we were partners he had taken 17 weeks of vacation.