Also, has anyone had more success with inbound marketing—using PPC, PPL, or other methods?

It sounds like a single family house where you will be living in the house(personal use).Therefore, you may not be getting the tax benefits you think you are.Consult an accountant.I am not sure why your sister would agree to this as well, she is losing $170,000 in this transaction and she faces the possibility of you increasing her rent.You also have to charge market rent or close to market rent or it is all deemed personal use.

@Mark Towey I don't "farm" areas personally, it doesn't really fit the niche I'm personally going after, but what I have heard from some major agents in my market lately is that farming is not near as productive as it used to. 

Be sure to check out the free tools BP provides to help analyze deals you may have and also market insights.

Happy to connect and work with anyone trying to expand their business.I am working on building an industrial portfolio of my own - consistently searching and analyzing deals.My main market is Southern California, but I am slowly expanding my lens across the US.Ronald Rhode and Chad Griffiths are the best content creators in the space hands down. 

For me, it has to be a data-driven decision: what is your current NOI, what would be if you replaced the boiler, how much will it cost, and how long will it take to get your money back...If the area and marketing don't warrant central air, I would NOT do conensors right away and just focus on the forced air.

Look at their marketing strategy.

Maine in particular has a few markets with a decent amount of multifamilies.

Are you in the market for contracting work, or are you doing your own projects?

I bought a condo in Norman Oklahoma 3 years ago and due to the rental market, I have struggled to get another.