However, some amenities consistently deliver high value because they attract more bookings, increase nightly rates, or result in better guest reviews.

The question that you need to ask is what is the 10% increase that is allowed based on? 

The median home sold price reached $582,329, reflecting a 9.7% increase from the previous year, with a median price per square foot of $325.

Quote from @Jonathan Blanco: Is it worth seeking lenders with $0 lender fees (such as origination, processing and underwriting fees) or do they just get that money by increasing rates and charging higher points?

But here's our biggest challenge: convincing an old-school, penny-pinching grandfather that investing in proper management, maintenance, and renovations will ultimately increase long-term profitability. 

Funny thing is this thread is pretty old and we just returned Saturday night from another trip to CR.  

The country's continuous population growth, coupled with its high demand for urban housing, positions its real estate market for steady, long-term price increases.Over the past decade, cities like Berlin and Munich have seen remarkable growth in property values, with an increasing number of investors betting on the continued upward trend.

It's just a matter of knowing where to go....oh and this is possible with 0% origination fees and without increasing the rate...not a bait and switch, i have a different compensation model.

We plan to keep them on a month to month lease but after a few months, have them sign a year lease and increase rent, however, we need help finding a GOOD app/website to get lease agreements/documents from or get a template so we can fill/add certain things we want.

The increasing barrier to entry results in fewer new STR's coming available for sale, but also fewer options for guests to rent.