The Long term, after some reserves, I'd like to bring down the assessment costs since I worry that this will negatively impact the property value. 

The property is only worth what it is worth - what the seller needs to make is irrelevant.

What percentage of gross revenue does an owner typically keep if they do employ a property manager?

We can build spec homes for $130K (1,140 SF) it just all depends on what type of property you're looking to build. 

This aligns with my interest in passive income.I realize I am not cut out for the entire REI process of consistently finding multiple properties for particular exit strategies.

In the last 18 months various states have instituted new rules, regulations or laws related to (1) need for licensure to wholesale (2) restrictions on marketing of a property in which you do not have ownership and (3) disclosure requirements when dealing with a homeowner that makes it clear to the homeowner that the contact signed with the wholesaler is not a definitive “sales” contract, therefore making it less likely home owners will sign4.

I’m looking for insights on which states allow you to list a property on the MLS as soon as you have it under contract—but before actually owning it.I know that some states have strict regulations around wholesaling and marketing equitable interest, while others allow it as long as you disclose your intent.

As you start you will want to take into consideration that many owners and hosts use more than just AirBNb to host their properties.  

There are a lot of people that are wanting to owner occupy, which has driven greater demand for these properties. 

Quote from @Bree Jimenez: Hello everyone, my name is Bree I am a new investor looking into get my first rental property and try the BRRR method what tips and advice does anyone have when getting your first rental property?