I have learned a lot from free information available on YouTube, forums, and blogs.

He says he uses the service every month, yet there are still a lot of roaches.I’m thinking of sending him some roach killer (the black boxes that you place around the home) to help with control.Can I do that?

I know there's a lot of details missing to actually give an accurate answer.

It’s concerning as I have a lot of money tied up in this.

A lot of the podcast episodes from the early 2010s were based on that market at the time, biased both temporally in favor of the early 2010s, and geographically in favor of Colorado.

Build - rent - refinance -repeat. in columbus ohio you are buying old houses that are 1900 or 1920 or 1940 and you are in a sellers market. on the other hand you can source land which is a buyers market and build single family homes or duplex or triplexes that will return by renting and pulling cash out on a DSCR loan and doing it again. there aren't a lot of strategies that do this. flipping is different. so many risks. but when someone has a well oiled machine it's all good and less risk.

Some of these comps aren't in the same subdivision and the sqft for all of them are a lot less than the original property.

That is part of the problem with a lot of companies (I am not knocking insula as dont have all the info/facts just stating how the business works), they engage brokers to get them loans and the brokers collect a small fee. unfortunately many of the brokers may be similar to real estate wholesalers - have little to no experience. 

Wow, alot of information here.

I haven't seen a lot of discussion about this topic which surprises me since I feel like personal finance people talk about HSAs all the time!