@Chad Gardner - this is one of the most common questions we get from potential/future househackers. 

It's a great first step to manifest your future reality. 

To them a 5 year old roof is in good shape for the near future the same as a 18 year old roof.

LOC's can have negative effects on your future purchasing power if not set up correctly and keeping in mind you can "never" use an LOC as a reserve or asset.It will always be a debt burden and can over inflate your back end debt ratios depending on the W2 income and your liabilities.

Any year I do this in the future there is a 2 year look back for health care cost.

I am not a fan of the stock market.

However, if I earn too much “earned income,” I risk losing these essential benefits.That’s why I’m exploring real estate and the stock market, as these generate “unearned income” and allow me to maintain my benefits while building financial security.

However, neighborhood limitations may cap future appreciation.

They're good to have open access to capital/cash/equity to a property ahead of time so you can execute a deal or purchase when the time comes on a split second decision (versus having to apply to a loan at that time which might take 20-45 days to get approved/closed/etc plus by that time you dont know what your future income/credit/assets will be like in order to qualify anyway).The second use is sleep at night factor and having a reserve of capital in the event an emergency event occurs in life.For these two reasons is why I use lines of credit.

@Jessica ZolotorofeHello From the Future ;)Ive spoken to a couple title companies, and transactional lenders and I have not heard about double closings/backtoback closings being illegal.