We have couple turnkeys, and couple of BRRRs that we did so far (all are single family residential properties with long-term tenants).We are interested in exploring commercial real estate, and wanted to get all of your help in getting started. 

You can theoretically have a higher rate from one lender with lower origination fees and total finance charges may come in lower.  

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it!

I can do that through charging points, but since I'm getting it at a lower rate than you could as a consumer, I prefer to mark up the rate while still being lower than most others in the market.

I am partnering with another investor who owns 4 single family homes in that vicinity.

It’s a single family house that I bought for $160k.

Patio door prices can depend on the Model of Patio door you are looking for, for a standard 60x80 in white it will cost $1900.00 colors can be added, and for a patio door 72x80 the cost will be $2100.00 Outswing for a 60x80 will cost $2600.00 installed, and for an outswing 72x80 it will cost $2700.00 installed outswing with Grills for a 60x80 costs $1860.00, and an outswing 72x80 will cost $2300.00 installed.You also add blinds to all sliding and outswing patio doors for an additional charge.

The guests have a credit card on file and your policy should allow you to charge for damages or excessive cleaning.

I don't know a single broker who would allow an agent to wholesale while hanging their license at their firm. 

Builder tore down the single family and built two single families on the lot.