I found a rental investment for $76,000. my credit score is about a 706. is it even possible to purchase?

You can get the deposit in two formats; credit at closing, or a check.

Your renter can pay free if they pay by bank account, however if they pay with a credit card they pay.

Credit Cards?

Have you looked into Credit Card financing?

I do have good credit so wondering I should just go to the bank for a loan for my first property or should I jump into wholesaling or seller finance options. 

should i start an LLC and how can I obtain business credit?

Good credit. 

the other thing if its  a owner occ type loan there could be mortgage insurance.. and most banks sell their owner occ loans anyway.. now if your doing what @Levi T. talked about and going after commercial assets.. this was possible years back.my personal banker was in charge of their OREO and I got the list every week.. and bought a few subdivisioins from them they took back .. but this is small commercial bank where I knew the owners of the bank personally IE president and head credit officer.. and my banker is in charge of all the loan officers... and has banked me 24 years.. so yes its who you know.bigger multi billion dollar banks doing owner occ you can pretty much foregeta bout buying those in todays market.they want as stated to establish if they get a mortgage insurance claim and or they want to maximize profits.. there is simply not as much hangover inventory.. and or they will then sell off notes.. 

I don't have that cash, but I do have it in credit cards, although that isn't logical.