You could do that and rent it out. 2) If you just want to sell them and the realtors are not helping (been there before), then try facebook market place free FSBO then if nothing, boost your post with only $20 for a week..use the filters, try different ones, then drop ad back to only a dollar a day 3)  (might be the best), take your sign down for a week or so, then approach a smaller local happening builder,  let them put their signs on one of the 2 lots.

Using a HELOC for buy and hold investments, especially when you don't have breathing room to weather a storm, is not the best next step.

You need a FREE application that manages the advertising flow,  then the applicants that are interested become leads, then offers a organized filtering process that lends to automated online applications submitted to the leads, and finally tenant screening.

Truth.C class tenants are no worse that A class tenants if you can filter out the instability.

You  just need to take a breath.  

I never install garbage disposers, built-in microwaves, dishwashers, those stupid faucet that utilize only one hole in a granite top and you can't get them to stop from getting so loose they fall off and leak under the sinks, trash compactors, water filters, icemaker piping nor anything that is not absolutely necessary because the more you own the more you have to maintain.

There are so many so be sure to filter by your location. 3) Review Dave Meyer’s The State of Real Estate Investing Report 2024 (in your resource page as a member of BiggerPockets!)

They can be messy in the kitchen as they cook with a lot of grease, and they don't have a lot of Air Conditioning knowledge so filter changing has to be emphasized.  

You can filter by State and type of exemption, such as 506(b) or 506(c). 

Knowing that multi-families are rare in DC, I have also tried to find homes with a basement that could be rented separately but these don't seem to appear on any filters either.