I see this as an opportunity to maybe purchase the house or wholesale it, the problem being I don’t have much reserves after my recent purchase.

I researched his website and confirmed he's buying these and averaging 300% to 400% returns.

You can have as many loans as you want just make sure you can show cash reserves.

As long as you have the reserves to rehab that should give you the most cash return but not always.

Most use the airbnb or vrbo built in reservation/payment system.  

@Chris GatesI have found having a license is quite beneficial, but since you're not a broker you will want to confirm that whomever sponsors you is understanding and accepting of your desire to be an investor.

Jim, message me the address and I can run the property to confirm ownership and who you need to negotiate with.

Lastly leaving less money in each positive cash flowing rental allows you to buy more rentals (cash to buy, down payment, closing costs, loan costs and required reserves).Frankly I don't often refinance with a conventional long term loan. 

Includes, tax, Insurance, Capital expenditures for stuff that needs to be repaired, monthly financing, any utilities that fall to a landlord like water or sewer (confirm any costs in that area) and a vacancy rate.Once you have all these numbers, you can work backward to your offer price based on the return you want to get on your investment. 

Including expenses, reserves, and management fees.