Materials have increased more than 20% in the last 5-8 years.

All this makes for great guest reviews and helps increase revenues. 

Granted there is a cost in hiring an agent, Having someone analyze each deal with localized knowledge is worth its weight in gold.

If you have extra cash at the end of the month, then do double up payments on the mortgages so the principle is reduced and this will increase your heloc room.

I am in it and feel it is worth it as they have groups all over the country who, with experience transaction coordinators and funding groups, and even closers to help you along the way.

GC in my area cost 10% of the total and I would say that is worth it for what they provide, but if you have the knowledge and willingness to be on the phone with subs (and spend a lot of time on site) you could save that by DIYing it.

Can anyone give me advice on how to go about it if it's worth it?

It’s worth reaching out to your local tax office to explore options.

He tells you to pay him $5,000 (or much more) to learn all the "secrets" that made him wealth, but then he doesn't tell you that his "secret" was to increase earnings, reduce expenses, save up and invest.

Keep in mind that they can increase that period if they get complains from the community, so make sure you're in good relationship with your neighbors.