If you do have large gains you’re allowed to combine them as mentioned above.

We use a combination of HML and our private investor network.

Combined that can cost $50k+ which they may not want to pay nor their is the possibility they would not they pass the DD report.Nothing wrong with raising money in this fashion (FB or online ads), many do it and are great sponsors. 

I bought my first two rental houses with a combination of using a HELOC on my primary and using my retirement $.

Shop LTV (or cLTV which is combined Loan To Value, basically your first mortgage and 2nd mortgage combined loan to value), rates, payment terms, time to close,  and draw period (how long you can go into and out of your heloc). 

Neighborhood revitalization projects, major corporate investments, and an influx of small businesses were all happening at a pace that made it clear the city is on an upward trajectory.From an investor’s perspective, Detroit offers a unique combination of affordability and opportunity.

Do you happen to have long term % of gross rent of combined maintenance/repairs/turnover costs/CapEx  ?   

Combined income is 3X rent.

Data is sourced from a combination US census, zillow, and realtor

Combine those factors and start thinking of nightmare scenarios, because they are very real and you must be proactive in policing against there potential to occur.