Plenty of successful investors started right where you are.

Apply for a dimensional variance on the vacant lot to allow a smaller lot and/or setback so it can be built upon.Your best first steps are to sketch a plan, possibly with an engineer's help, then contact the zoning department to discuss your idea with them to get informal feedback on your liklihood of success before you spend a lot of money.

that may work for others, but i don't have enough capital to do that, and the returns are in the tougher strategies (like STR - i didn't look at your other posts, but if you are successful in STR, that's great.) 

You can have some success if there is no interest in a property, especially this time of year.

Metro, and the expected spike in rent growth in the D.C. metro over the next few yearsSummary:After analyzing the data outlined below, I believe that investing in a value-add, multifamily property today has very strong potential for success.

I then decided to modify my criteria to look for deals that were 50+ units and found that I had much more success in that space because most credible bigger buyers aren't looking at deals that are smaller than 100 units. 

Hi @Bien Nguyen, @Josh Green is the go to realtor/investor here in Florida for all your STR needs and will be able to guide you towards making a successful investment/purchase.

There are people that do flipping in other states while they live in another state from the projects and they are successful, but they have built a team while doing it. 

We did our own with decent success.

He will definitely help set you up for success!