In the meantime, just by actively viewing this site, you will start picking up on the language and how to operate things.

I currently have a conventional loan and put 15% down what would be the best financing option for me to pick up a second property? 

Don't trip over dollars picking up pennies.

For one, that investment you picked may cost $100,000 to fix up and you don't know.

I see a few possible options that seem like they could be viable and thought I'd pick some brains to see if I'm on the right track at all. 1.

My grandfather had 5 rental houses at one point that I helped rehab, but unfortunately he passed away before I was able to pick his brain. 

You might look into something like a thermostat plastic cover/lock option, but again if they want to reset the wifi box that bad, they probably know how to YouTube lock picking and can easily open up a basic lock box type lock.A lot of the wifi systems these days allow a mesh type network to allow for more coverage.  

Here's my advice- I find its easier to pick a market when you get an understanding of a criteria.

Looking for some good tips for picking a tenant pre/post Covid if there are any differences at all.

She told him to pick his best and final for all properties.