We have discussed selling the property and rolling it into a multi-family but again feel like we may be trading a fairly hands off property with good cash flow for one that may be a bit more labor intensive and only yield marginally better performance.Any advice on how to expand our rental portfolio/maximize its performance is greatly appreciated!   

I don't have any career worthy trade skills or college degree, so finding a higher income job is slim pickins for me.

Get a realtor, loan officer, GC, insurance agent, trades, etc. 

Maybe trade with another fellow investor and have them give you a small piece of one of their deals?

It's time, though, for me to expand into new opportunities and learn more tricks of the trade to grow a robust portfolio.

Not sure if you need to think about budget or not, but downtown will be very very expensive.I don't think there are enough lots that trade that there would be any time of accurate or even ballpark pricing.I don't know anything about it, but there does seem to be some good demand in self storage parking and also in truck parking. 

But the income from the STR far surpasses that of the LTR, so it's a trade off.

We are furnishing with contract grade quality and amenity heavy (game room/hot tub/murals/new paint/lighting and ALL basics needed to host a 5* stay so all bedding, kitchen items, bathroom items, linen and bedding as well as the labor for trades.

If Levittown 4/2 cape style homes are trading at $699K fully renovated (for example) and the home needs ~ $200K in work, you'll know that any asking price above $500K would likely not be worth it. 

For example, do you work in any form of trades?