With 200 units, at least a portion of those will want to buy in the next 5 years.If the area really builds up as a result of increased residential units, you will have a good investment on your hands. 

Looking to get in touch with some more to increase my odds of finding something that works for me.

There would be no refinance in this situation since there was no original financing to begin with.As for the credit cards, to get a single card with a 20k or more limit would be based on your credit history, but American Express has been known to be generous with initial limits and credit limit increases after 60 days of opening the account and then 6 months again after that.

In other words you receive a 30% tax credit on the solar system as well as a 30% tax credit at the least on the roof that is under the solar system (full roof 30% depends on the advice of your CPA).Couple that with the roof now becoming a producing asset and offsetting the utility bill instead of a liability and the increase in appraised home value assuming the solar system is not leased then going solar makes a lot of sense at the same time as replacing/repairing a roof.

It repeals an important California rental housing law with no replacement and no plan to address affordable and middle-class housing or deal with the problem of increasing homelessness on our streets.

One idea I've come across is to refinance out of my current FHA and try to get another one with 3.5% down, but I'm not sure how plausible it is to get another FHA Loan without an increase in family size or geographical job change. 

If you were ok with taking on additional debt (loans your tenants would pay down for you over time), you could potentially leverage that 475k into 10 or more cash flow properties (though there are limits on how many loans you can carry at once).Of course, there's always a middle ground too: sell the condo, use some of the money to increase your DP on the new house and use the rest for investing.

Such as moving to smaller home for less rent, selling your car and buying a cheaper one, cutting out extras in your budget such as take out and eating out, etc...If you can make sacrifices now by redicinf uoir bdieht ane/or increasing your Income you will be able to prosper in the near future with real estate.

I have also seen that it is becoming increasingly difficult and more expensive to get involved in Airbnb in Miami Beach but other areas in the near vicinity have great potential. 

If you do not have an agreement on maintaining the rent, I suspect he can increase it.