Places like Blue River a town just south of Breckenridge that actually allows short-term rentals, some places in Silverthorne, some places near Crested Butte. 

Analyzing these properties, I knew my only option would be a long term rental.

I feel your pain; I have also had to battle (at times) with my wife to hold on to my long term rentals!

Here’s a bit of a synopsis: DSCRs and condos go hand in hand  Anything under 5 units will still be treated as residential single-family in terms of terms, rates, etc.

Does anyone know of a lender who specializes in lending money for long-term government-backed deals (public of private lenders)?

Long term building equity. 

Seller loans let you set good loan terms.

I've found a partner who's willing to finance a short-term while I will be in charge of operations.

Research comparable properties in the area to gauge pricing, rental rates, vacancy rates, and demand.Property Insurance: Obtain quotes for property insurance to understand the potential costs and coverage options.Survey: Consider getting a property survey to confirm boundaries, easements, and encroachments.Due Diligence Contingencies: Include due diligence contingencies in your purchase agreement to allow time for inspections, assessments, and resolution of any issues uncovered during the process.Risk Assessment: Identify and assess potential risks associated with the property, such as market volatility, tenant turnover, maintenance costs, or regulatory changes.Exit Strategy: Develop a contingency plan or exit strategy in case the investment doesn't meet your expectations or unforeseen circumstances arise.By thoroughly conducting due diligence, you can minimize risks and make an informed decision about purchasing the property.

I hadn’t even thought about short term rentals for that area but that’s a really good point with the graduations.