The estimate for the hydrojetting and spinning chain treatment is about $10,000, and if the line ends up being replaced, the estimate was between $30,000 and $40,000.  

I had helped another investor friend of mine, so I am familiar with the process here in Philadelphia, so I could have done it myself.However,  my immune system is compromised as I had stage 3B Melanoma, diagnosed in 2017, so I just passed the 5 year mark in remission, but the treatments unfortunately put me at high risk of getting covid and having it be more dangerous for me than someone who has a better working immune system.

@David AlfaroWanted to share with you a great way to tap into the equity built from your ADU.The problem today: most appraisers used by traditional lenders would give ADU square footage a second-class treatment than the main house (as some of your mentioned above) since there aren't that many comps and they're trying to be conservative.However, you can consider taking out a HELOC/doing cash-out refi through Figure.com (HELOC up to $250k, Cash-out refi up to $1M).

You can finish up with them and have some colorful awesome looking plans, and then the DEQ in Bozeman will just deny it all.Price out infrastructure like roads, lights, fire hydrants, treatment systems, before you even approach the owner.

The most familiar example of such treatment is the capitalization of finder's/brokerage fees for the purchase of the property, as explicitly provided by longstanding Treasury regulation, Treas.

Sec. 1.469-2T(f)(6) covers the treatment of self-rental transactions.

I agree with a few others that I prefer to have different buckets of funding and tax treatment for diversification. 

You've probably heard of the new bill threatening to raise taxes on Short Term Rentals (STRs).It does not apply to primary residences.But it's still worth knowing about as a house hacker.The bill from the Colorado State Legislature, known as Senate Bill C, addresses the property tax treatment of short-term rental units.

If so it would not qualify for 1031 treatment.  1031s are only allowed when your intent was to use the property for productive use in business trade or investment.  

How this all plays out partly depends on if and when a game changing treatment arrives.