What services are offered to have a real address for mail and potentially mail forwarding. 

Otherwise, you could potentially do a Debt-Service Coverage Ratio purchase or refinance to get the necessary funds which would be a cashflow based lending option for investments. 

I am seeing a lot of new homes near Downtown that are good for the price and have great potential but they are in older neighborhoods.

In the future it might be a good idea to pay someone $50/month to go by and check the place inside at least once a week while you’re all gone.

Should I continue renting or sell and get a different property since I think the condo is a ticking time bomb for a big project in the future.  

That will hurt their Fico score and could easily affect their ability to obtain credit for anything well into the future.

We actually decided not to go through with this particular deal so won't be needing to do this anymore, but still helpful to know for the future

-Rents will be steady for the foreseeable future , no rent increase factored in-interest rates are steady state (unlikely, downward bias is likely)Y1 Build one triplex - one detached with apartment and one detached garage with a apartment above.

You have $100k in appreciation in two years, which dwarfs the increase in property taxes.Whether to hold or sell is based on future estimated IRR of what you own vs estimated IRR of other opportunities.

I'm playing the same game - Roth SDIRA, although I'll prob start purchasing through an entity as well in the near future.