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. 

Instead, start by sharing why you’re interested and ask questions to understand the seller’s motivation like, ‘Why do you think it hasn’t sold yet?’

It's complicated.

@Eric SmithGenerally, if the taxpayer sells the relinquished property to an unrelated party, the taxpayer generally cannot acquire replacement property from a related party unless:The related party is also participating in a 1031 exchange.The related party pays more in tax on the sale to the taxpayer than the taxpayer is deferring in the exchange (this scenario is rare).Let’s look who is considered a related party: Spouse, children, grandchildren, parents, and siblings.Corporations and shareholders owning more than 50%.Commonly controlled corporations.Partnerships and partners with more than 50% interest.Trustees, grantors, and trust beneficiaries.Non-Related Parties:In-laws.Aunts, uncles, nephews, nieces.Friends.Domestic partners.Entities owned 50% or less by the taxpayer or a related party.In your case, your mother-in-law, aunts, and cousins are not considered related parties to you under the definitions in Sections 267(b) and 1031(f).

this is what we build and we do it with newbies but make sure you partner with a builder who has experience and a track record.

Do they think we were killing it day one 10 years ago?

I would advise against anything like that and again, talk to the ones who are doing it successfully. 

Quote from @Rene Dittrich: We are selling 2 lots of land and would be open to do seller financing for one of them.

This is where everyone started.Residential investing is very forgiving by nature, you have to try hard to really screw it up.

Quote from @Brandon Weis: In your opinion, as you are starting out at 0 reviews, do you think it is a must to beat the competition on price to overcome customer's hesitancy or lack of trust with no reviews?