Cleaning out the property - the designated next-of-kin and executor will be responsible for removing and dispersing the deceased tenant’s belongings before the lease period is over.Unfortunately, it does look like this can be a long process and patience will be needed as you will be dealing with an estate. 

Loose qualifications are 3X income, 580 Credit Score, No evictions..... 

Unfortunatley there is no easy solution, this basement is just past its useful life.The only real solution here is to suspend the house on steel beams and then remove the basement from underneeth.

For example if a licensed brokerage is audited by the state and they cannot furnish buyer broker agreements for active clients the division could fine heavily the brokerage or remove their license.

I should be able to qualify for a DSCR loan or conventional loan, but I see down the road that this could affect my DTI and make it difficult for me to get more mortgages in the future.I understand I could use a conventional investment loan and my parents could co-sign the loan to give me better terms, but does this remove the loan from my DTI?

As I note in the article, "attorney Dan Kelly recommended removing rent-to-income ratios, as such a ratio must be held constant for both market and voucher tenants.

Only if you are replacing or removing is when you run into issues, proper safety, and disposal. 

Are you looking at buying/building a private strip and expanding the hangar capacity or would this be an off airport storage requiring wing removal and towing?

When you buy the property, you can petition the court to remove the demo order because you are able to complete the work to the building to bring it up to code.

So, you need to "remove" yourself from the situation!