The primary benefit is that you get to keep your "homestead" interest rate on the rental and get another "homestead" rate on the new property.

The benefits of commercial loans are that you essentially wipe the slate clean with a blanket loan for your existing portfolio and can using Fannie/Freddie for your next properties. 

Instead of sitting in hotels or bars while on the road I'd love to turn this into productive time that can benefit my real estate investment career.

Tax benefits is just a by-product.

If someone is going to do it full time like that it only makes sense to get your license.But for the part-time investor buying their second or third property, it doesn't make sense, and that's where you come in and can be of extreme benefit to them.

In a commission only job, you want to benefit from the work that you have put in. 

that works you could do a basic LLC and have uneven distributions which is the major benefit to the LLC.. the LLC lends the money you have 2 or 3 buddies as members.. you the sponsor be the managing member.. then cut the pie however you like.. when I had my shops I did this through guidance lines with my banks.. we put the cash out for the loan.. then back filled and pulled from our guidance line.. for every 1 mil in cash we had we got 4 mil from the bank..

Confidently explain what the benefits are.You can not wholesale every house, simply because sometimes it is not the best thing to do.

That 30 day window is a great benefit. 

You trying to pay more upfront is smart from your perspective (maybe not in terms of the benefits of having tenants pay down your loan, but definitely in terms of minimizing interest payments) but the bank doesn't see it the same way.