I plan to eventually transfer it into an llc I created once it is rented, and refinanced.

I host (2) RV sites for an owners property (he also has a cabin he rents out as an STR part time as well).

If the property can qualify off LTR rents, I would advise going that route since you will have a favorable interest rate. 

As part of the Biden/Harris plan to boost housing affordability, the White House is proposing a 5% maximum annual rental rate increase for corporate landlords (or forfeit federal tax breaks).Single-family rents rise faster.

If you make small changes like the rent rate or a new rule, you can add that in, as well.

I'm wondering if I would be eligible for financing on a vacation home under the "second home" rules if I am currently renting my primary residence?

It has grown in popularity but still has opportunities in various towns/locations depending on what you're seeking in style/returns/etc.

It would be located near a wedding venue, hunting retreat, and about 25 minutes outside of a major university town (e.g. could rent for college football gamedays). 

You can rent out the other 3 units and learn about landlording while you go to school.

It was clear to both parties, with email exchanges confirming that the end date is July 15th and that there will not be renewal of lease.However, I forgot to stop the automatic rent collection through Zillow, resulting in the tenant paying the full July rent on July 10th, which has already been transferred to my bank account.