Or, there are a variety of renovation loan options (FHA, VA and conventional) that allow you to finance the improvements as well as the purchase. 

So there's a very wide variety of loan products falling under the broad "portfolio loan" definition.

You could do a quick google search for any of these terms like "top cities for population growth in 2020" and find a variety of lists.

They're more hassle than they are worth, and you're tempted to overspend for a variety of reasons.  

The famous 5th Avenue street offers an extensive variety of culinary options, vibrant culture and nightlife, exclusive boutiques, just a few steps from the beach. 

I grew up out in the valley and cut my teeth helping mi padre on a couple of fourplexes that way - I'd be glad to help you discern the local market out there. between the detached newer construction - to the more traditional 80's built stuff - there's a fair bit of variety there.

Rates can be a tad higher (figure the 5-8% range depending on a wide variety of factors like FICO,LTV, size, property type, etc) but the 30 year terms can often provide improved cash flow over the shorter term notes from local banks.

It sends me and the tenants emails and notifications of things like when leases expire, when a tenant is late on the rent, and it create a variety of reports including reports for tax preparers. 

As mentioned above, if you are talking about a large mobile home park, then it would likely make sense, but that depends on a variety of factors. 

You can potentially experience real estate transactions from a variety of perspectives (Seller’s agent, buyer’s agent, buyer etc) allowing you to understand the whole transaction more intimately.