It's hard to hit your goal if you aren't crystal clear on what the goal actually is.

In addition to numerous tradition RE related investments (most individually owned but some as LP), here are our unusual investments (both are RE related, but not what is common on this site)- I have mentioned this one a few times on BP, when fracking was just starting to be known to the general public (near turn of century), we purchased mineral rights in North Dakota.  

This way, outside of appreciation, when you pull it out in a few years you could potentially get even more out of it.There are so many ways to approach it, but if your goal is offset the monthly and interest rates, and it helps you purchase sooner rather than later, cool.

Absolutely it is an option, it just depends on your goals.

It seems like interest rates are most common, so that's what I'm leaning towards, but is the ball in my court regarding the terms or in the investor's?

Agree that amount looks very small another option, not sure what your goal is, but if you are looking to purchase some down the road, change up your strategy and maybe do a personal line of credit for now.

My building shares a common wall with a neighboring property.

Hope to join this community and meet lots of friends with similar interests to help each other reach their dreams/goals. 

It's pretty common that if someone is wholesaling, they are going to sign a contract to buy your house and then sell (assign for a fee) the contract to someone else.

@Efrem Debesay  Metal roofs do not seem to be as common in the city but, they do last longer and are less likely to have any leaks with one.