If appreciation is part of your long-term wealth-building strategy, holding onto this asset could be wise.That said, if your main goal is to aggressively pay down your primary residence mortgage, selling could make sense.

But We plan to build a deck on the land to start and then make it an easy place to camp on the land.

If house hacking isn't the best option for me, how would you recommend starting out to build up some investments.

You definitely can't just buy a building low down, do no work to it and keep old rents and expect to profit. 

Are you aiming to build a significant portfolio over time, or do you plan to keep it more manageable with just a couple of rentals?

https://getpocket.com/explore/item/meet-the-woman-who-builds...Fun article about the woman who created a few interesting STRs including the Potato and the Hobbit Hole.

I work for a building materials company now and took their online game from Zero to very engaged in the past few years and it's been really fun.

My long-term goal is to build a portfolio of multifamily rentals while also working as an agent helping investors scale their portfolios.Your experience sounds incredible!

Developers have been on a building rampage for the last 5 years, so we've got brand new apartments sitting vacant and properties less than 50% full in many areas of town. 

That could mean working with an investor willing to fund the deal for a share of the profits or starting smaller with a house hack or live-in flip to build credibility, or putting sweat equity into a deal with a partner to learn and build your track record.