No more than 10% will help boost your score quickly. 35% of your score is payments 30% is usage.

'Other' Asset Classes to consider:- Short term rentals: STR's are often a neglected usage for many Boomers or properties that are dated.

I would 1) talk to my lawyer, 2) approach the town to see if it could be converted to a 5 family or grandfathered in for the usage. 

There is some language in your note that says that you cannot build something like an OIL WELL on it that would change the intended zoning usage.   

What you don't want is to be liable/accused of charging tenants for your utility usage.

makes no sense to sell early in my opinion- sweet spot is 8-10 years when cash flow wipes out ltv leverage, the whole time still maintaining usage and tax advantages. if your looking for that big payday on a quick then sell if you are a balanced long term investor stay in, milk it and 8-9 years dump it to maximize tax implications and sell and reinvest in another.Personally, my kids will end up dealing with our portfolio because we wont end up selling.we have 20 and sold one and regretted ever since.

And each Subdivision has its own rules for what they would allow as a "permitted residence" (in regards to size, operations/usage, etc.) same for building and managing/operating the property.

Possible other con is that it’s not a deadbolt but I find it pretty secureTheir customer service is actually pretty good, one of my locks broke in early usage and they send me a new one for free without hesitation, it ended up being the door itself needing adjustment not necessarily the lock, I’m in Michigan with hot and humid weather and cold freezing weather and no issues at all since then with any lockOne last thing/general tip: I keep one door of my rentals with regular locks and on a regular lockbox with back up keys in it, I’ve found it amazing in a pinch when you get that dreaded “my code isn’t working” and can’t get good internet service ect to change it at the time (most of the time it’s user error), also in cold weather states in older homes the locks can adjust and get stuck

Most folks budget for their day to day usage and never account for the capital expenses. 

Lowes has good perks ($20 delivery fee for anything, veterans discounts etc)Check out the Points Guy website, they review and recommend what is right based on your usage and desired rewards and the risks (points expiring, blackouts etc).