Homewyse.com is a good source to get costs for individual repair items based on zip code if you need them for your spreadsheet.  

I ended up leaving and sourced my own VAs off of Upwork.

Some of those variables are the size of the park, number of vacant spaces, the number and type of park amenities, the age of the park, underground infrastructure age and condition, park location, size of the market, city water or well, city sewer or septic, other utility sources and whether or not they are direct billed, deferred maintenance, cost of management, and more.

@Dan McGrew so in Virginia, for example, source of funds protection means that if they have a voucher or funds come from something else besides employment, you can’t say 3x income for whole amount.

Other sources of income?

That allows you to use the appreciated equity as your future down payment source.

Sources of vendors and professionals 6.

I want you to be aware that a government source that your tenant may refer to may be confusing.

If your never looking at the houses. then your just a lead source and your buyers cant rely on any of your numbers other than basic numbers pulled from data.. but real estate is local and who knows the condition of the property really, when you have not looked at it..

@Krishna SurendraRecommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.