These two have become very popular over the last few years, and you'll get mixed reviews from all sides. 

It will give you an idea of what your competition might be like, and for those being rented a lot, what amenities seem to be popular that would get the most rentals.

Is this a popularity contest to you all?

It has been pretty popular for investors and I have invested a ton here as well.

Contrary to popular belief, this is not set because I believe it will give me a higher return.

Sure, it will take a few days but worth its weight in gold. 

Im an agent and investor in scottsdale who has used 10 down for myself and clients. 10 down used to be super popular before March of 2022.

You may be able to capitalize on this if your area has experienced similar growth.Simplification: Selling would allow you to focus on your new single-family investment properties and potentially expand in those markets.Capital for other investments: The proceeds from selling could be used to fund other potentially higher-yielding investments, especially if you use a 1031 exchange.Small town limitations: Depending on the specific town, there may be limited growth potential compared to larger markets or more popular tourist destinations.Given the stable cash flow, low remaining debt, and your established experience with the property, keeping the fourplex seems like a solid option, especially if it's in a location with STR potential.

Is fixing and flipping in Charleston, SC popular?

I'm seeing parts of Durham become increasingly popular like 27703 for new construction in addition to Bethesda and South Durham near Southpoint Mall.