The smart combination of buying at a discount, adding value, and then using leverage once the asset is performing to pull equity and launch the next project is just a very good formula when executed well.Be sure to start by reaching out to non-recourse lenders to learn about their programs. 

They have rules and can pull out adding more risk to you of not performing.

Currently managing a building in Ukrainian Village and need to have something called a critical test exam performed on a 3 story steel porch.

Try to pick an area you can stretch those 300k to buy a 2bed or 3bed with barely putting anything down, you should be able to get some seller subsidy if shopping for condos.

Purchase price: $729,000 Cash invested: $250,000 Sale price: $1,550,000 We performed the following renovations prior to selling the house:-Converted an open dining room into a 4th bedroom creating 2 closets and french doors-Renovated the kitchen and master bathroom including moving water lines and venting-Installed a beam creating an open archway-Covered the fireplace and installed custom cabinets in the living room-Built a patio with pavers and a pergola-Removed concrete patio and installed sod-Installed can lighting -Carpentry -Paint

Purchase price: $505,000 Cash invested: $125,000 Sale price: $550,000 Performed the following renovations:-Roof replacement-Converted doorway into an open archway-Kitchen replacement including flooring and moving and running water lines-Converted window into a patio door with patio steps-Lighting & electrical panel and fixtures-Painting exterior / interior-New Gutters-Carpentry-Landscaping

You may also try posting in the "Private Lending" forum page.I did want to just mention that I perform Civil Engineering services for developers throughout Texas & have done work on RV Parks before as well as work in Round Rock (different projects). 

@Allen Gross It's commendable that you want to perform such a service for your tenants!

I have a lender or two that will ask for appraisal funds up front, but this  is done through a secured portal and it is disclosed that the funds are refundable should your deal fall through before an appraisal inspection is performed. 

You are in the final stretch...and not yet 30.