Rich Young, Loughlin, Crest, etc.Commercial brokers typically do not charge fees for tenant/buyer representation but find a way to take their fees out of the deal.

Has potential buyers shaky.

If they do, then you can likely find another tenant for that amount fairly easily, as I would assume the entire town's taxes are up- so if someone really wanted to be in town, that price is the new normal.If your taxes increased that substantially in a C neighborhood, your tenants would way more likely give push back for that type of increase- even though you're not being greedy, you're just imposing the same raise you were given.Often the buyer who had the "well, the numbers are better" mentality is only looking at year 1. 

Go to the city and county of your prospective STR and ask for the deed restrictions and/or municipal code, for the specific property.

Let's be honest here, the listing agent didn't have to do much to procure a suitable buyer.

I've even been discouraged while joining grant funded programs allegedly for "low income" buyers. 

Your wife as conservator/guardian has an obligation to her mother and selling the property to herself creates a conflict of interest in that she stands to benefit as the buyer and is also making decisions for someone else as the seller.2.

This amounts to lost opportunity because if you had purchased RE, at the closing it can start producing return. 5) ADUs detract from the existing structure whether this is privacy, a garage, or just yard space. 6) this is related to number 1, but there are many more buyers looking to purchase homes for their family than there are RE investors looking to purchase small unit count properties.

Generally, there are more prospective tenants who may behave this way with lower-priced rentals.

The exterior got a fresh coat of paint, and I added modern fixtures inside to attract buyers.