As far as splitting the monthly fees, I would question sharing part or all of the HOA fees since some HOA fees are for services that are not necessarily related to maintenance, repair, and replacement.

Just know that if you have $100,000 and you  Buy $100,000 property a cost anywhere from 20,000 to 50,000 or all of your 100,000.  

I am aware I will need money partners, portfolio lenders, seller financing components, or all of the above, just feel a little out of my league and don't know where to start. 

Would you purchase one property and use most or all of the $$ as a down payment.

Through the promotion of our renovation and the finished product, we now have 3-4 clients that came straight from paid ads on Instagram and Facebook.I'm wondering if a portion or all of the 35k renovation can be used as a tax write off because it was used for a business purpose (promotion).

For most investors, it's less binary and more complicated than being all-in or all-out of the market. 

If you have RE investing experience, I would very much appreciate any feedback or suggestions you may have on any or all of the questions above.

It makes me think that there should be a certain amount of compensation (or all of it) that is profit based, rather than gross rents based.

These loans usually carry a higher rate, or are adjustable, or maybe a shorter term (which makes your loan payment higher) or all three!

This is a product of the new tax reform.This is better than 1031 exchange as you can invest just a part of your gain ( or all gain).