How to start with a vision

[James Karch]

I have a duplex that I live in that is in a hot market, there is also another duplex next door that the older owners (out of town) are considering selling.    The properties are blocks from the many amenities of the area.   Both properties required major updates to meet the potential of long term vacation rentals.   My questions, how do I start?   I have a vision of the properties end state, but I do not have the experience on how to go from potential to end product.      Thank you!