I felt like I was constantly chasing her down for updates, which added a ton of unnecessary stress to the whole project.The design itself was incredibly disappointing.

Many newcomers spend their first few years working under a sponsoring broker, and during that period, the broker often earns a significant portion of the revenue.

Buyer beware:  Any "new" cabin built in the bubble period might well be a pile of junk.

Although the study may increase the gain, the gain may be taxed at a much lower rate making it a beneficial investment.If a property is purchased with the intention to flip or own for a short period of time (less than 3 years), a cost segregation study may not be significant.SHOULD I GET A COST SEGREGATION STUDY BEFORE OR AFTER REHABBING MY PROPERTY?

Also, 18 months is too short a period of time to obtain a truly significant result.  

Note: Short and succinct updates are provided on the https://fincen.gov/boi website but I like to get more context.

If it gets rented the owner will update the listing with a new available date; if this moves by 30 days or more you can reasonably assume it was rented.

Increase rent every single year at the renewal period.

New roof, exterior painting, new flooring, bathroom updates, finished new living space What was the outcome?

Once renewal period comes up (if they've been paying on time and causing no trouble) you can decide if you want to keep them or move on.