Of course, it's only an average, so it seems I had some bad luck so far.My subsequent purchases will be in better areas and will be newer homes.

Not bad, especially considering it’ll take about 9 months for permits and a year for construction.Now, let’s say you decide to do a lot split with two 4,000-square-foot duplexes.

Property ClassProperties are categorized by class, impacting their quality, condition, and investment profile:Class A: High-end, newly built, prime locations, attractive to institutional investors.Class B: Good quality, older than Class A, with minor deferred maintenance.Class C: Older properties with dated amenities, but value-add opportunities exist.Class D: Distressed properties in less desirable locations with high risks but potential for significant improvement.4.

I know this is an unpopular opinion around here that you won’t see on the front page of the daily BiggerPockets newsletter, but it’s the truth For the record, I still believe a quality STR purchase offers a great ROI over the long term.  

Quote from @John Key: Quote from @Ray Hage: I had already thought dropping 5 figures into these "mastermind" programs was a bad idea and now, I think it is even worse based on what I read in this thread.

Thoughtful upgrades and efficient project management made this a successful venture, highlighting the strength of our partnership and commitment to delivering high-quality results.

Others have little/no experience and will give you bad advice that takes you down the wrong path.I recommend you focus on educating yourself while saving more money. 

Do a toilet bowl test , put food coloring in the toilet tanks and check for bad flapper valve . 

It may also deter other bad behavior.

Sounds to me like you’re commenting on how the quality of the course is without having seen it.