Because of what I've seen pretty much across the board whether it is lotto winner, inheritance or even unexpected work bonuses - the first thing I would do is limit the exposure to anyone else knowing about the windfall & immediately make plans to properly put this in one or more anonymous structures, as well as, change my retirement into either a Solo 401k or SDIRA so I could be more in charge of my own money & have the ability to act as my own bank.Because I'd want to use a good portion of the money for investing, I'd set up that structure and use a Traditional LLC as my shell corporation and get my accounting in line and then get my estate plan to line up making sure to have all the directives, POA's & pour-over so my desires, and not anyone else, would be upheld if I became incapacitated or worse.I'd want to protect myself from petty lawsuits or mismanagement from the earliest stages.

The outside outlet on the back of the house near the basement exterior door is not GFCI protected.

A problem I’m having finding my first SFH deal that I didn’t really consider is being able to evaluate C and C+ neighborhoods. I’ve been so lucky and fortunate to have parents that let me stay with them and when I fin...

This money will be used to cover unexpected expenses and vacancies. 

Part of the code which outlines the temperatures requirements:“There shall be supplied water heating facilities which are properly installed, are maintained in safe and good working condition, are properly connected with the hot water lines required under Subsection C of this section and are capable of supplying water at a minimum temperature of not less than 120 degrees Fahrenheit (120° F) and at a maximum temperature of not more than 140 degrees Fahrenheit (140° F) at all times to each hot water outlet.”https://library.municode.com/n...

Require a large down payment and monthly rent to cover all of your expenses and unexpecteds.

Land comps can be a good secondary barometer, but the site improvement costs and the fees are what can be a big unexpected cost bust.

I have a GFCI outlet installed under the sink and then put a cord on dishwashers so that they are easy to unplug and slide out for service/replacement.

Pad the figures for the unexpected.

To do that I was required to completely update all the electric boxes, have outlets every ten feet in every room, and the boxes have to be accessible to each apartment unit (which none were before, they were in a garage that no one had access to).