Here's more context: I recently started a fitness class that's growing quickly, but revenue is low.

You're stacking risk factors - first deal, partnership, no existing revenue source, and making an off market purchase for the first time.

Remember that a lot of revenue is built on relationships with return renters and web sites like Airbnb where you build a reputation. 

However, the revenue hasn't matched the growth rate.

Topic No. 701, Sale of your home | Internal Revenue Servicehttps://www.irs.gov/taxtopics/tc701 

As Tyler said, we can help you assess communities, home types and even understand occupancy/revenue projections for individual homes.

U2 Top-Grossing Tour: U2 led the top-grossing tours in the U.S. from October to March, earning over $230 million from their residency at Sphere, which also became Billboard's number-one large venue for revenue.

We do under 5mm a year in gross revenue. 

Detroit, Las Vegas, much of Arizona and Florida had huge revenue declines at the Great Recession.  

For example, the Internal Revenue Service (IRS) has published various materials relating to tax regulations on real estate investments.Publications such as Publication 527 (Residential Rental Property) and Publication 946 (How To Depreciate Property) provide detailed information on rental income, expenses, depreciation, and other aspects of real estate investing.