When I run the numbers based on these rents, the property operates at a negative cash flow.If I increase the studio's rent to $1,400 per month, the property becomes cash-flow positive.

I was conducting an extremely seasonal business and after 8 years of operation the business was insolvent. 

I'll also add that Bonnie's group is a great resource with operators from 0-Bonnie.

Common tasks include guiding (for example, blind, severe physical disability), alerting (severe diabetes, seizures), retrieving/operating (pushing buttons, switches, etc).

Deduct mortgage interest, property taxes, travel, and operational expenses.

I added a pool and did some landscaping and have been using it as a family winter retreat and renting it to a STR operator the rest of the year.

More than likely the asset will in a location where cap ex & management/operational costs are disproportionately higher and therefore your expense ratio will also have to be adjusted to a higher number.  

I think if you have a little extra time, operating a smaller STR business can pick up some good income.

No lending institution or bank would be permitted to operate with those ratios.

I see a conflict of interest in your role as fund manager and principal in the “operating” company.