I have searched high and low on their city website.

Common reasons:1) Change of closing date (instead of closing end of month, if it gets pushed to beginning of next month, prepaid taxes, interest and insurance will increase because you have through to months end)2) Appraisal comes in low and LTV goes up.

The likely market rent in this area is as low as $995 and probably no higher than $1195 and a lot of the rent will depend on condition of the property.Pull up public records on the home, and you will see it initially sold in 98 for roughly 50k. 

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.

I understood the difference between bird dogging vs assignment fee/wholesale as a BD takes a low fixed amount regardless of whether the deal closes i.e. $2k or something low.

  - SMS to low equity?   

Trust me you don't go through no highs, without dealing with some lows.

Sometimes you buy low, sometimes you buy high.But as long as you stay in the market, you benefit from the tendency of the market to go up over time.People think of buying a house as this one time thing, but it’s actually more likely that you will buy, sell, refinance a few times over the course of 30 to 60 years.

he is also working D low C class areas and those are dominated by wholesalers full stop.

The important points often glossed over are (1) is the buyer providing their personal guarantee to the seller for the note (2) is the seller maintaining a wrap position so they can foreclose in the event of default and gain ownership (3) is the buyer putting up additional collateral (4) how large is the down payment (5) what is the LTV (6) is this a personal residence for the seller or investment property (7) will the property cash flow and if so what will the cash flow be (8) is the property in a increasing, declining, or stabilized area (9) is the property being sold at market value, or above market value because of the low interest rate of the existing mortgage and (10) how experienced and what is the track record of the buyer, and is the buyer purchasing a property for investment or to live in or otherwise use.