and I gotta tell you it's really fun to get to see the impact of my legacy gifts while I'm still around to watch my children prosper.  

Since you are only selling the development rights and not the entire property, the existing mortgage on the building does not directly impact the 1031 exchange of the development rights.

@Hiyun Park only experienced investors can DIY everything in Class C Midwest areas like Detroit, Cleveland, St Louis, etc.Hopefully the info below will help you:-----------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Rates shouldn't be impacted here.2.

Make sure you know the impact that adding an ADU will have on any rent control. 12) investors seldom include the land value in the overall ADU costs.

@Jay Fayz for SFR (1-4 family) Classifications are mostly opinion-based.Not aware of anyone tracking eviction rates, except Evictions Lab nonprofit that doesn't like landlords.Here's some info that might helpt:---------------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

-------------------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

What have you seen make the biggest impact ? 

So depending on what your investment goals are and what type of properties (Class A through C/D) and where in the city you want to buy, that can directly impact the level of stability one can find within the market here. 

I would imagine i could have an environmental sample taken to see if im able to simply back fill it.