I do not see that home prices have dropped 2-3% and this is a lot of added savings in additional to a downpayment if so. 

I sincerely hope you, your family and friends are safe and not in harm's way.  

Here's the deal: You don't need to withdraw and return the current security deposit just to collect the additional $100.

There is no harm in reaching out for a slight difference in budget you can just say that you got there contact on FF and have an available unit slightly above their price range and tell them the price and let them know to get back to you if they are interested.

Is there a way to access the additional features without creating a new Stessa account through the BiggerPockets link? 

Duplex have different zoning that may permit additional units.

Additionally, are there any other factors I should be considering when purchasing a duplex or triplex?

Turning on the fan will also help eliminate bathroom odors and odors from harmful bathroom cleaning chemicals.Pro tip: Add cleaning the exhaust fan on your cleaning crew’s checklist during turnover.

There can also be chemicals in the treated lumber that are harmful to the environment.Invest in a good screen or built in door system.  

My budget is in the $200-250K range.Please feel free to let me know if additional details would help, and thank you in advance for your time and advice!