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. 

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

Tenant issues?

But during the buyer’s due diligence, several unexpected issues surfaced, each cutting deeper into the profit I had worked years to earn.The first issue was with the water lines.

Make sure the condo is FHA-approved, allows rentals, and has no financial issues before committing.

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

@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.  

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

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.