Also make sure to build on a property located in a desirable location with larger pop density and if holding for rentals, charge median rent for that market as lenders want to see a bigger pool of buyers/renters available to occupy/sell. 

Build up your portfolio with a professional landlord and then as your portfolio grows transfer the assets over to a larger PM firm for ongoing accounting and management. 

Larger brokerages sometimes are in need of administrative work, which could earn you a steady income while also getting exposure to the field. 

Direct mail, SMS, door knocking, Facebook ads?"

Quote from @Jon LaBorde: @Jerryll Noorden ok that sounds good, but currently I’m just trying to get my foot in the door, so I’m not expecting to become a millionaire from this plan and by no means am I expecting this to work as my only marketing route in the business for more than a time or two, but I’d just like to get started in wholesaling and with this information I think it gave me everything I need l and I’m thinking I’m gonna give this plan a shot but I’ll definitely be looking to expand and adapt as I grow as a wholesaler.

It all started with removing some interior walls and changing the floor plan, removing a chimney, adding a bedroom and bathroom, installing patio door to the backyard, and completely renovating every other interior element What was the outcome?

XD It is pretty much shut down once the city knocks on your door.  

Others put down larger downpayments to make the cashflow work.

Scotia Bank in Costa Rica will allow you to open up an larger account as 'business owner' if you own your properties in an LLC but the process of opening an account is much more difficult. 

Leverage magnifies return. 3) The effort involved in adding an ADU is comparable or larger than a rehab associated with a BRRRR.