Currently, we manage approximately 40 short- and mid-term rentals, in addition to a few long-term properties.

Where are you currently? 

I just completed a small subdivision myself - just a word of advice that if you do sell any of these you'll need a release of mortgage from your current lender to do so.

A PMC is the ONLY one that will deal daily with your property.Here's some copy & paste advice on hwo to screen PMCs:Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

I am looking to get into wholesaling and currently i'm putting marketing as my first priority.

It sounds to me that your current lender is offering 67% LTV, which is the norm for most true hard money lenders. 

I am 19 yr old and am currently trying to find my first rental property and I am very eager to get started.

With the current mortgage rate constraints affecting how many buyers are willing to enter the market we are seeing a lot of borrowers have success with the BRRRR strategy with plans to sell in the next 3-5 years when interest rates go down.Researching potential LTR and STR rental amounts and seeing if holding for a few years is a viable option is a good analysis to do well. 

i currently use ocuplant realty team and denson construction for the 7 properties I have in detroit. did you get a property @Jesse Streng

What is your current occupancy rate?