The issue I see most is the cashflow gets crushed by HOA fees and the added headaches of having them tweaking rules etc. 

I’m going to disagree with @Chris Seveney and say whether an assignee could force a sale directly would be a state law issue and heavily dependent upon the contract terms. 

Overcrowding can strain plumbing, electrical systems, and air conditioning, leading to expensive maintenance issues.

The issue is: can the operator survive to that "long term".  

@Ryan BroschardHi Ryan,You have hit a common issue many new investors fail to anticipate.  

Also know that building a home seldom goes as expected - I have relatives that just built a nicer house… they thought it would take 9 months… it literally took 18-24 months between delays in permitting and the builder just not being able to get it done in a timely manner - often due to sub-contractor issues.  

@Rachel Jane a lot of issues here to consider:1) Does the condo association even allow rentals?

One thing to consider on the credit card option is that a lot of contractors don’t accept them so that could be an issue.

They might only skim an inspection report and trust me to find issues.

I even try to unsell them on the business by sharing my financial losses, litigation,  market shifts, permit purgatory, shady contractors,  clouded title issues,  paranormal activity, squatters, mold, etc.