I recommend having a local experienced investor (an unbiased party not someone trying to sell you something) do a detailed video tour of the property and the street/neighborhood before you submit an offer and paying them for their time $100 or $150.

Hi we are selling a rental property in Charlotte which currently brings in 2000/mo , the house has a market value of 450k.

For example our bridge loan product is ok with your debt to income being to high at the time of purchase as long as the debt to income will be low enough to qualify once you rent (or sell) your current home. 

Hi @Dana Kristian Gomez I may be selling my 3-unit STR/MTR in Old Town (Tacoma neighborhood) this year. 

From the research that I've done so far with Mt Orab the houses continue to be going up in value and any homes that are for sale typically sell fairly quickly.

Should we sell and try to buy a house when we come back or even build?

Meaning you have to buy it right (low) as most flippers can fix it up and hire an agent to sell it. 

Now I am thinking about selling the house.

Hold it for 1-3 years, fix it up, raise rents, and sell at a profit.

What are you selling?