I have one out-of-state property and it is a condo in South Lake Tahoe.

With the knowledge I have no idea where this Duplex is located, and therefore I am not an expert on this I will say the following.

I have two duplexes with one unit occupied in each at the moment and the bills are vastly different...I have one unit occupied by a working brother/sister/baby. 

(A condo in Kelowna across the beach, a Townhome in Rutland and just bought a condo in Victoria)As mentioned above, prices in Kelowna skyrocketed ever since (I.e. we bought a Townhome for 295K in 2015 and now is valued around 450K) so take your time.

Purchased a duplex in Colorado and I'd like to know how long we are required to store/hold onto the tenants property they left behind after they move out? 

I will keep this somewhat brief.5 months ago my wife and I bought a duplex to fix up and rent out.

Downtown boomed so much even I couldnt afford a condo there hahaha. https://detroit.curbed.com/2018/5/18/17369214/5-detroit-neighborhood-developments-watch

I plan to put up a fence around a duplex and would like to get a better understanding of my property lines.

I purchased a duplex and want to submit my appraisal to the county in order to hopefully lower my taxes.

Once I rent this house out, I have been looking into renting a condo in the Orlando area.