This violates the lease, but rent is paid on time each month, neighbors have not noticed anything unusual, and the tenants are hardly ever there so overall, they are good tenants to have.I am debating ending the lease due to the clear violation, OR adding the new employees to the lease for a fee with regular inspection to ensure only 3 people are staying in the unit. 

In my estimation this would be a Denver Real Estate mastermind, where we meet regularly, discuss our current status, our goals, and help each other progress forward. 

REI areas of interest (what I like learning about and may take action on):Small Multi-Family AND converting SFH to multi-familyFix and FlipBuy and Hold long term or mid-term rentalsBRRRLand Flipping and Land EntitlementsModular/Mobile/Tiny homesForeclosures and Tax LiensAbout Me: 40 yrs old, married, working mother of 2.

Or an alternate strategy if your goal is to have a vacation rental paid for is to buy some sort of investment, STR, buy and hold, stocks, bonds whatever and just dedicate the cashflow from that to renting a place each year. 

There are a ton of local banks around me that offer owner occupied low downpayment loans but are portfolio lenders for these types of products meaning they hold the loan in house.

I regularly use Propstream

Investment Info:Small multi-family (2-4 units) buy & hold investment.

Those funds grew in value on top of the regular allocations from your paycheck.

My suggestion is reach out to these businesses and get a hold of the shared access easement. 

You alternatives are hold for a year to only pay capital gains tax.