Totally agree with @Ricky A.

Total damage about $28'000. 

And also, since I am the borrower, am I correct in my understanding that I would be subject to a tax on cancellation of debt which would lower my total IRR.I saw many years ago (like in 2017) on BP that note investors were shooting for 10-12% IRR in a zero-interest rate environement. 

Quote from @Jake Barrutia: It is totally acceptable, but you need to be conscious of a few things:1.

@Audrey Sommeron where specifically to live, and what makes the most sense given all the factors - that's totally up to you. 

The way to handle it is to allocate expenses based on the percentage of the home’s square footage used for rental purposes.Here’s how it works:Calculate Rental Percentage: Add up the square footage of both the in-law suite and the rented room, then divide by the total square footage of the house.Apply This Percentage: Use this rental percentage to deduct a proportionate share of expenses like repairs, utilities, and mortgage interest.This post does not create a CPA-Client relationship.

If I am looking to pull money out of a total of 10 properties to make new investments, what are the options here?

They did this a couple of times after I left for college and in total amassed a total of 6 rental units in California.

The cost basis includes:Purchase Price: The amount you paid for the property.Renovation Costs: Add the cost of improvements and remodels that significantly enhance the property's value.Closing Costs: Certain closing costs related to acquiring the property (like title fees) can be added to the basis.You will then allocate the total cost basis between the land (which isn't depreciable) and the building (which is depreciable over 27.5 years for residential properties).If you're unsure about how to allocate between land and building, you can use the allocation percentage from your property tax records or get an appraisal.This post does not create a CPA-Client relationship.

Obviously, if your prepayment penalty has already expired, this is not an issue.Personally, I'd keep the extra funds and use for other investments that will potentially turn into more revenue versus paying extra on a loan that will take years to potentially realize the savings...Cheers!